HONG KONG — With the arrest of Prince Alwaleed bin Talal, the prominent billionaire investor, Saudi Arabia has touched one of the richest and most influential investors in the world.

Among Prince Alwaleed’s crown jewels: sizable stakes in Twitter, Lyft and Citigroup. He has gone into business with some of the corporate world’s biggest titans, including Bill Gates, Rupert Murdoch and Michael R. Bloomberg.

His investments span the globe, including the Four Seasons Hotel George V in Paris, the Savoy in London and the Plaza in New York. He has also invested in the AccorHotels chain and Canary Wharf, the London business development.

So vast are his investments that he has been referred to as the Warren Buffett of the Middle East.

Prince Alwaleed’s arrest is likely to reverberate across dozens of companies around the world that count the investment company that he founded, Kingdom Holding, as a major investor or shareholder.