Infinite means infinite. The number is probably inexpressible. How many atoms in the visible universe? Maybe 10^80. And how many quantum events for each second per each atom? We don’t know for sure, but certainly millions at least.
And, to blow your mind away even more, each one of these permutations represents another universe with equal permutations. In other words, the number of of them grows exponentially by a factor impossible to imagine. You make a good point, one I’m aware of.