22636220399988 has 96 divisors (see below), whose sum is σ = 59948499945600. Its totient is φ = 6590255468544.

The previous prime is 22636220399963. The next prime is 22636220399993. The reversal of 22636220399988 is 88999302263622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2322181 + ... + 7117932.

It is an arithmetic number, because the mean of its divisors is an integer number (624463541100).

Almost surely, 2^{22636220399988} is an apocalyptic number.

It is an amenable number.

22636220399988 is an abundant number, since it is smaller than the sum of its proper divisors (37312279545612).

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

22636220399988 is a wasteful number, since it uses less digits than its factorization.

22636220399988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9440961 (or 9440959 counting only the distinct ones).

The product of its (nonzero) digits is 241864704, while the sum is 69.

The spelling of 22636220399988 in words is "twenty-two trillion, six hundred thirty-six billion, two hundred twenty million, three hundred ninety-nine thousand, nine hundred eighty-eight".