Champion boxer Floyd Mayweather has everything money can buy. Too bad his money can't buy him common sense or self-esteem, because then he would truly be prosperous.
Mayweather's millions keeps him relatively comfortable -- and he makes sure to always have at least a million in cold cash on hand. As for the rest of his money, according to ESPN The Magazine, the narcissistic pugilist keeps $123 million in a single bank account.
By the way, the FDIC covers bank deposits up to $250,000. So if Floyd's bank ever goes under, the majority of his cash will go down with it.