22557422645 has 16 divisors (see below), whose sum is σ = 27959646720. Its totient is φ = 17452843200.

The previous prime is 22557422543. The next prime is 22557422663. The reversal of 22557422645 is 54622475522.

It is a happy number.

It is not a de Polignac number, because 22557422645 - 2⁸ = 22557422389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22557422596 and 22557422605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206366 + ... + 296144.

It is an arithmetic number, because the mean of its divisors is an integer number (1747477920).

Almost surely, 2^22557422645 is an apocalyptic number.

It is an amenable number.

22557422645 is a deficient number, since it is larger than the sum of its proper divisors (5402224075).

22557422645 is a wasteful number, since it uses less digits than its factorization.

22557422645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91436.

The product of its digits is 1344000, while the sum is 44.

The spelling of 22557422645 in words is "twenty-two billion, five hundred fifty-seven million, four hundred twenty-two thousand, six hundred forty-five".