22521464615490 has 32 divisors (see below), whose sum is σ = 54051807297600. Its totient is φ = 6005691428544.

The previous prime is 22521464615467. The next prime is 22521464615497. The reversal of 22521464615490 is 9451646412522.

It is not an unprimeable number, because it can be changed into a prime (22521464615497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3895836 + ... + 7760184.

It is an arithmetic number, because the mean of its divisors is an integer number (1689118978050).

Almost surely, 2^{22521464615490} is an apocalyptic number.

22521464615490 is an abundant number, since it is smaller than the sum of its proper divisors (31530342682110).

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

22521464615490 is a wasteful number, since it uses less digits than its factorization.

22521464615490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058626.

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 22521464615490 in words is "twenty-two trillion, five hundred twenty-one billion, four hundred sixty-four million, six hundred fifteen thousand, four hundred ninety".