22631655137 has 24 divisors (see below), whose sum is σ = 28377757800. Its totient is φ = 17889935616.

The previous prime is 22631655107. The next prime is 22631655139. The reversal of 22631655137 is 73155613622.

It can be written as a sum of positive squares in 4 ways, for example, as 82428241 + 22549226896 = 9079^2 + 150164^2 .

It is not a de Polignac number, because 22631655137 - 2²⁰ = 22630606561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22631655094 and 22631655103.

It is not an unprimeable number, because it can be changed into a prime (22631655139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 703439 + ... + 734907.

It is an arithmetic number, because the mean of its divisors is an integer number (1182406575).

Almost surely, 2^22631655137 is an apocalyptic number.

It is an amenable number.

22631655137 is a deficient number, since it is larger than the sum of its proper divisors (5746102663).

22631655137 is a wasteful number, since it uses less digits than its factorization.

22631655137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32625 (or 32618 counting only the distinct ones).

The product of its digits is 226800, while the sum is 41.

The spelling of 22631655137 in words is "twenty-two billion, six hundred thirty-one million, six hundred fifty-five thousand, one hundred thirty-seven".