quadrillionaire

noun2

1. •
   Somebody whose wealth is at least one quadrillion (10¹⁵) currency units (which is possible only in places with hyperinflated currencies).

   • No doubt, had a million or so more worlds been equally accessible, Ford could have been a quadrillionaire in two or three more years. — 1954
2. •
   (figurative) An extremely wealthy person.

   • Loonies are always good material; they're so unpredictable, so genuine. And a quadrillionaire loonie geek was the acme of ratingsworthiness. — 1997