22529724916 has 12 divisors (see below), whose sum is σ = 39788735140. Its totient is φ = 11161514880.

The previous prime is 22529724907. The next prime is 22529724947. The reversal of 22529724916 is 61942792522.

It can be written as a sum of positive squares in 2 ways, for example, as 9263292516 + 13266432400 = 96246^2 + 115180^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22529724916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25836405 + ... + 25837276.

Almost surely, 2^22529724916 is an apocalyptic number.

It is an amenable number.

22529724916 is a deficient number, since it is larger than the sum of its proper divisors (17259010224).

22529724916 is a wasteful number, since it uses less digits than its factorization.

22529724916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51673794 (or 51673792 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The spelling of 22529724916 in words is "twenty-two billion, five hundred twenty-nine million, seven hundred twenty-four thousand, nine hundred sixteen".