22506457656 has 64 divisors (see below), whose sum is σ = 58550659200. Its totient is φ = 7203466368.

The previous prime is 22506457627. The next prime is 22506457661. The reversal of 22506457656 is 65675460522.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 123931 + ... + 245706.

It is an arithmetic number, because the mean of its divisors is an integer number (914854050).

Almost surely, 2^22506457656 is an apocalyptic number.

It is an amenable number.

22506457656 is an abundant number, since it is smaller than the sum of its proper divisors (36044201544).

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

22506457656 is a wasteful number, since it uses less digits than its factorization.

22506457656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369748 (or 369744 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 48.

The spelling of 22506457656 in words is "twenty-two billion, five hundred six million, four hundred fifty-seven thousand, six hundred fifty-six".