The most recent big Mega Millions win — $536 million in July 2016 — was the third-largest in the game's history, and the seventh-largest in U.S. history. It was the most ever awarded to a single Mega Millions winner, and the highest cash-value jackpot awarded to a single winner in a U.S. lottery.
Of course, if you are lucky enough to pick the winning combo, you won't walk away with the full amount.
Lottery site USAMega.com estimates the federal tax withholding on the $199.8 million lump sum would be nearly $50 million, and state taxes could knock out up to another $17.6 million (with New York the worst offender). Those figures are just the amounts withheld up front; your final tax burden is likely to be even higher.