The Richest Man in the World
The purpose of this essay is threefold: (1) to bring to the attention of readers the existence of a long-standing conspiracy about the identification of “The Richest Man in the World”, (2) to dismiss from contention the current list of candidates, and (3) ...
About...8.48 x 10^25. 80 septillion dollars.
I don't think there's that much wealth on the entire planet.
Maybe I used Wolfram Alpha wrong.