22638818554 has 96 divisors (see below), whose sum is σ = 40052960640. Its totient is φ = 9561784320.

The previous prime is 22638818513. The next prime is 22638818563. The reversal of 22638818554 is 45581883622.

It is a super-2 number, since 2×22638818554² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86079027 + ... + 86079289.

It is an arithmetic number, because the mean of its divisors is an integer number (417218340).

Almost surely, 2^22638818554 is an apocalyptic number.

22638818554 is a deficient number, since it is larger than the sum of its proper divisors (17414142086).

22638818554 is a wasteful number, since it uses less digits than its factorization.

22638818554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 585 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 52.

The spelling of 22638818554 in words is "twenty-two billion, six hundred thirty-eight million, eight hundred eighteen thousand, five hundred fifty-four".