225705632257216 has 28 divisors (see below), whose sum is σ = 459989603583088. Its totient is φ = 109802740015872.

The previous prime is 225705632257181. The next prime is 225705632257229. The reversal of 225705632257216 is 612752236507522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47657436876 + ... + 47657441611.

Almost surely, 2^{225705632257216} is an apocalyptic number.

It is an amenable number.

225705632257216 is an abundant number, since it is smaller than the sum of its proper divisors (234283971325872).

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

225705632257216 is an equidigital number, since it uses as much as digits as its factorization.

225705632257216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95314878536 (or 95314878526 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 55.

The spelling of 225705632257216 in words is "two hundred twenty-five trillion, seven hundred five billion, six hundred thirty-two million, two hundred fifty-seven thousand, two hundred sixteen".