22557416645 has 32 divisors (see below), whose sum is σ = 29189652480. Its totient is φ = 16680755520.

The previous prime is 22557416597. The next prime is 22557416653. The reversal of 22557416645 is 54661475522.

It is not a de Polignac number, because 22557416645 - 2⁸ = 22557416389 is a prime.

It is a super-2 number, since 2×22557416645² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 22557416645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1470284 + ... + 1485546.

It is an arithmetic number, because the mean of its divisors is an integer number (912176640).

Almost surely, 2^22557416645 is an apocalyptic number.

It is an amenable number.

22557416645 is a deficient number, since it is larger than the sum of its proper divisors (6632235835).

22557416645 is a wasteful number, since it uses less digits than its factorization.

22557416645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15665.

The product of its digits is 2016000, while the sum is 47.

The spelling of 22557416645 in words is "twenty-two billion, five hundred fifty-seven million, four hundred sixteen thousand, six hundred forty-five".