Elon Musk is the world's richest person with a net worth of $256 billion. He is followed by Mark Zuckerberg, who passed Jeff Bezos on Friday with wealth worth $206 billion. Bezos is placed third with $205-billion wealth, Bernard Arnault ($193 billion) is placed fourth while Larry Ellison ($179 billion) and Bill Gates ($161 billion) are placed fifth and sixth.