256116686370 has 64 divisors (see below), whose sum is σ = 630286344576. Its totient is φ = 66584770560.

The previous prime is 256116686363. The next prime is 256116686389. The reversal of 256116686370 is 73686611652.

256116686370 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 461841 + ... + 851780.

It is an arithmetic number, because the mean of its divisors is an integer number (9848224134).

Almost surely, 2^256116686370 is an apocalyptic number.

256116686370 is an abundant number, since it is smaller than the sum of its proper divisors (374169658206).

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

256116686370 is a wasteful number, since it uses less digits than its factorization.

256116686370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313795.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 256116686370 in words is "two hundred fifty-six billion, one hundred sixteen million, six hundred eighty-six thousand, three hundred seventy".