22557636812 has 12 divisors (see below), whose sum is σ = 39615357096. Its totient is φ = 11238963360.

The previous prime is 22557636811. The next prime is 22557636869. The reversal of 22557636812 is 21863675522.

It is not an unprimeable number, because it can be changed into a prime (22557636811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9962489 + ... + 9964752.

It is an arithmetic number, because the mean of its divisors is an integer number (3301279758).

Almost surely, 2^22557636812 is an apocalyptic number.

It is an amenable number.

22557636812 is a deficient number, since it is larger than the sum of its proper divisors (17057720284).

22557636812 is a wasteful number, since it uses less digits than its factorization.

22557636812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19927528 (or 19927526 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 47.

The spelling of 22557636812 in words is "twenty-two billion, five hundred fifty-seven million, six hundred thirty-six thousand, eight hundred twelve".