253616305656 has 64 divisors (see below), whose sum is σ = 727624846080. Its totient is φ = 72161118720.

The previous prime is 253616305597. The next prime is 253616305661. The reversal of 253616305656 is 656503616352.

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, 3091506 + ... + 3172481.

It is an arithmetic number, because the mean of its divisors is an integer number (11369138220).

Almost surely, 2^253616305656 is an apocalyptic number.

It is an amenable number.

253616305656 is an abundant number, since it is smaller than the sum of its proper divisors (474008540424).

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

253616305656 is a wasteful number, since it uses less digits than its factorization.

253616305656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6264244 (or 6264240 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 48.

The spelling of 253616305656 in words is "two hundred fifty-three billion, six hundred sixteen million, three hundred five thousand, six hundred fifty-six".