225564268977 has 24 divisors (see below), whose sum is σ = 334554292800. Its totient is φ = 146392177248.

The previous prime is 225564268907. The next prime is 225564268981. The reversal of 225564268977 is 779862465522.

225564268977 is a `hidden beast` number, since 2 + 2 + 5 + 564 + 2 + 68 + 9 + 7 + 7 = 666.

It is not a de Polignac number, because 225564268977 - 2⁷ = 225564268849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225564268907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2007402 + ... + 2116787.

It is an arithmetic number, because the mean of its divisors is an integer number (13939762200).

Almost surely, 2^225564268977 is an apocalyptic number.

It is an amenable number.

225564268977 is a deficient number, since it is larger than the sum of its proper divisors (108990023823).

225564268977 is a wasteful number, since it uses less digits than its factorization.

225564268977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124357 (or 4124354 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 63.

The spelling of 225564268977 in words is "two hundred twenty-five billion, five hundred sixty-four million, two hundred sixty-eight thousand, nine hundred seventy-seven".