22515602704 has 135 divisors (see below), whose sum is σ = 53277203973. Its totient is φ = 9190384896.

The previous prime is 22515602687. The next prime is 22515602713. The reversal of 22515602704 is 40720651522.

The square root of 22515602704 is 150052.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4572464400 + 17943138304 = 67620^2 + 133952^2 .

It is a super-2 number, since 2×22515602704² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22515602704.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 96633372 + ... + 96633604.

Almost surely, 2^22515602704 is an apocalyptic number.

22515602704 is the 150052-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22515602704

22515602704 is an abundant number, since it is smaller than the sum of its proper divisors (30761601269).

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

22515602704 is an equidigital number, since it uses as much as digits as its factorization.

22515602704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 22515602704 in words is "twenty-two billion, five hundred fifteen million, six hundred two thousand, seven hundred four".