22520964544 has 28 divisors (see below), whose sum is σ = 48127736104. Its totient is φ = 10394290944.

The previous prime is 22520964539. The next prime is 22520964551. The reversal of 22520964544 is 44546902522.

It is a self number, because there is not a number n which added to its sum of digits gives 22520964544.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13533402 + ... + 13535065.

It is an arithmetic number, because the mean of its divisors is an integer number (1718847718).

Almost surely, 2^22520964544 is an apocalyptic number.

It is an amenable number.

22520964544 is an abundant number, since it is smaller than the sum of its proper divisors (25606771560).

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

22520964544 is a wasteful number, since it uses less digits than its factorization.

22520964544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27068492 (or 27068482 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 22520964544 in words is "twenty-two billion, five hundred twenty million, nine hundred sixty-four thousand, five hundred forty-four".