22504445544 has 32 divisors (see below), whose sum is σ = 64298416320. Its totient is φ = 6429841536.

The previous prime is 22504445543. The next prime is 22504445563. The reversal of 22504445544 is 44554440522.

It is a super-2 number, since 2×22504445544² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22504445543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66977349 + ... + 66977684.

It is an arithmetic number, because the mean of its divisors is an integer number (2009325510).

Almost surely, 2^22504445544 is an apocalyptic number.

22504445544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22504445544 is an abundant number, since it is smaller than the sum of its proper divisors (41793970776).

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

22504445544 is a wasteful number, since it uses less digits than its factorization.

22504445544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133955049 (or 133955045 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 39.

The spelling of 22504445544 in words is "twenty-two billion, five hundred four million, four hundred forty-five thousand, five hundred forty-four".