22646399595972 has 96 divisors (see below), whose sum is σ = 54761904637440. Its totient is φ = 7279957762560.

The previous prime is 22646399595943. The next prime is 22646399595977. The reversal of 22646399595972 is 27959599364622.

It is not an unprimeable number, because it can be changed into a prime (22646399595977) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10109538 + ... + 12144774.

It is an arithmetic number, because the mean of its divisors is an integer number (570436506640).

Almost surely, 2^{22646399595972} is an apocalyptic number.

It is an amenable number.

22646399595972 is an abundant number, since it is smaller than the sum of its proper divisors (32115505041468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22646399595972 is a wasteful number, since it uses less digits than its factorization.

22646399595972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035581 (or 2035579 counting only the distinct ones).

The product of its digits is 3968092800, while the sum is 78.

The spelling of 22646399595972 in words is "twenty-two trillion, six hundred forty-six billion, three hundred ninety-nine million, five hundred ninety-five thousand, nine hundred seventy-two".