22537597980 has 24 divisors (see below), whose sum is σ = 63105274512. Its totient is φ = 6010026112.

The previous prime is 22537597937. The next prime is 22537598053. The reversal of 22537597980 is 8979573522.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22537597980.

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, 187813257 + ... + 187813376.

It is an arithmetic number, because the mean of its divisors is an integer number (2629386438).

Almost surely, 2^22537597980 is an apocalyptic number.

22537597980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22537597980 is an abundant number, since it is smaller than the sum of its proper divisors (40567676532).

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

22537597980 is a wasteful number, since it uses less digits than its factorization.

22537597980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375626645 (or 375626643 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 57.

The spelling of 22537597980 in words is "twenty-two billion, five hundred thirty-seven million, five hundred ninety-seven thousand, nine hundred eighty".