22564568236 has 12 divisors (see below), whose sum is σ = 45129136528. Its totient is φ = 9670529232.

The previous prime is 22564568177. The next prime is 22564568249. The reversal of 22564568236 is 63286546522.

22564568236 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 22564568236.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402938691 + ... + 402938746.

Almost surely, 2^22564568236 is an apocalyptic number.

It is an amenable number.

22564568236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22564568236 is a wasteful number, since it uses less digits than its factorization.

22564568236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805877448 (or 805877446 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 49.

The spelling of 22564568236 in words is "twenty-two billion, five hundred sixty-four million, five hundred sixty-eight thousand, two hundred thirty-six".