Quadrillionaire

No doubt, had a million or so more worlds been equally accessible, Ford could have been a quadrillionaire in two or three more years.

Source: wiktionary

This is a novel by the author of The Love of Stones (2001). "John Law is a man full of secrets. People call him the Cryptographer, or the Codemaker. He is mysterious and charming, the world's first quadrillionaire, the inventor of an unbreakable code, of a new form of electronic money called Soft Gold.

Source: wiktionary

One popular foreign currency transaction scheme labelled 'burning money' made people instant quadrillionaires and trillionaires in Zimbabwean dollars.

Source: wiktionary

A man named Chris Reynolds was credited $92 quadrillion USD on his paypal account, "This unexpected influx of wealth elevated him to the status of the richest person on the planet and the only quadrillionaire to have ever existed". Following this, after the man reported this error and it was fixed, "PayPal owned up to their mistake and thanked the richest man of all time for understanding the situation, saying: 'This is obviously an error and we appreciate that Mr. Reynolds understood this was the case'".

Source: wiktionary