Is there a maximum amount I can have in 1 savings account?

Update: I know the FDIC only insures $250k. If I win $100M in the power ball and decide to keep $10M of it in a savings account, I can earn 2% which is $200K. As long as I do not touch that 10M I can earn $200k/yr just from that and that is not even counting my other investments I would make
Update 2: Ally bank pays 2% APY, that is much higher than my local banks and credit union
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