22561634444252 has 24 divisors (see below), whose sum is σ = 40861273514880. Its totient is φ = 10888855807680.

The previous prime is 22561634444249. The next prime is 22561634444281. The reversal of 22561634444252 is 25244443616522.

It is a self number, because there is not a number n which added to its sum of digits gives 22561634444252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233818943 + ... + 233915414.

It is an arithmetic number, because the mean of its divisors is an integer number (1702553063120).

Almost surely, 2^{22561634444252} is an apocalyptic number.

It is an amenable number.

22561634444252 is a deficient number, since it is larger than the sum of its proper divisors (18299639070628).

22561634444252 is a wasteful number, since it uses less digits than its factorization.

22561634444252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467734781 (or 467734779 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 50.

The spelling of 22561634444252 in words is "twenty-two trillion, five hundred sixty-one billion, six hundred thirty-four million, four hundred forty-four thousand, two hundred fifty-two".