22537116805872 has 160 divisors (see below), whose sum is σ = 59978553984000. Its totient is φ = 7288958776320.

The previous prime is 22537116805849. The next prime is 22537116805883. The reversal of 22537116805872 is 27850861173522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684814954 + ... + 684847862.

It is an arithmetic number, because the mean of its divisors is an integer number (374865962400).

Almost surely, 2^{22537116805872} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22537116805872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29989276992000).

22537116805872 is an abundant number, since it is smaller than the sum of its proper divisors (37441437178128).

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

22537116805872 is a wasteful number, since it uses less digits than its factorization.

22537116805872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36119 (or 36113 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 22537116805872 in words is "twenty-two trillion, five hundred thirty-seven billion, one hundred sixteen million, eight hundred five thousand, eight hundred seventy-two".