Sets of 3 zeros Past 1,000 Name Number of Zeros 1 million 6 (1,000,000) 2 billion 9 (1,000,000,000) 3 trillion 12 (1,000,000,000,000) 4 quadrillion 15 (1,000,000,000,000,000) 5 quintillion 18 (1,000,000,000,000,000,000) 6 sextillion 21 (1,000,000,000,000,000,000,000) 7 septillion 24 (1,000,000,000,000,000,000,000,000) 8 octillion 27 (1,000,000,000,000,000,000,000,000,000) 9 nonillion 30 (1,000,000,000,000,000,000,000,000,000,000) 10 decillion 33 (1,000,000,000,000,000,000,000,000,000,000,000) 11 undecillion 36 12 duodecillion 39 13 tredecillion 42 14 quattuordecillion 45 15 quindecillion 48 16 sexdecillion 51 17 septendecillion 54 18 octodecillion 57 19 novemdecillion 60 20 vigintillion 63 21 unvigintillion 66 22 duovigintillion 69 23 trevigintillion 72 24 quattuorvigintillion 75 25 quinvigintillion 78 26 sexvigintillion 81 27 septenvigintillion 84 28 octovigintillion 87 29 novemvigintillion 90 30 trigintillion 93 31 untrigintillion 96 32 duotrigintillion 99 33 tretrigintillion 102 34 quattuortrigintillion 105 35 quintrigintillion 108 36 sextrigintillion 111 37 septentrigintillion 114 38 octotrigintillion 117 39 novemtrigintillion 120 40 quadragintillion 123 41 unquadragintillion 126 42 duoquadragintillion 129 43 trequadragintillion 132 44 quattuorquadragintillion 135 45 quinquadragintillion 138 46 sexquadragintillion 141 47 septenquadragintillion 144 48 octoquadragintillion 147 49 novemquadragintillion 150 50 quinquagintillion 153 51 unquinquagintillion 156 52 duoquinquagintillion 159 53 trequinquagintillion 162 54 quattuorquinquagintillion 165 55 quinquinquagintillion 168 56 sexquinquagintillion 171 57 septenquinquagintillion 174 58 octoquinquagintillion 177 59 novemquinquagintillion 180 60 sexagintillion 183 61 unsexagintillion 186 62 duosexagintillion 189 63 tresexagintillion 192 64 quattuorsexagintillion 195 65 quinsexagintillion 198 66 sexsexagintillion 201 67 septensexagintillion 204 68 octosexagintillion 207 69 novemsexagintillion 210 70 septuagintillion 213 71 unseptuagintillion 216 72 duoseptuagintillion 219 73 treseptuagintillion 222 74 quattuorseptuagintillion 225 75 quinseptuagintillion 228 76 sexseptuagintillion 231 77 septenseptuagintillion 234 78 octoseptuagintillion 237 79 novemseptuagintillion 240 80 octogintillion 243 81 unoctogintillion 246 82 duooctogintillion 249 83 treoctogintillion 252 84 quattuoroctogintillion 255 85 quinoctogintillion 258 86 sexoctogintillion 261 87 septenoctogintillion 264 88 octooctogintillion 267 89 novemoctogintillion 270 90 nonagintillion 273 91 unnonagintillion 276 92 duononagintillion 279 93 trenonagintillion 282 94 quattuornonagintillion 285 95 quinnonagintillion 288 96 sexnonagintillion 291 97 septennonagintillion 294 98 octononagintillion 297 99 novemnonagintillion 300 100 centillion 303

There is also the number googol. It has 100 zeros after it, and it looks like this:

10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000



Beyond that is the googolplex, which is a one followed by a googol zeros. A googolplex is actually a useless number to the scientific community because it exceeds the number of particles in the universe.