256516376652 has 18 divisors (see below), whose sum is σ = 648416396628. Its totient is φ = 85505458872.

The previous prime is 256516376579. The next prime is 256516376687. The reversal of 256516376652 is 256673615652.

256516376652 is a `hidden beast` number, since 2 + 5 + 6 + 516 + 3 + 76 + 6 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3562727418 + ... + 3562727489.

It is an arithmetic number, because the mean of its divisors is an integer number (36023133146).

Almost surely, 2^256516376652 is an apocalyptic number.

It is an amenable number.

256516376652 is an abundant number, since it is smaller than the sum of its proper divisors (391900019976).

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

256516376652 is a wasteful number, since it uses less digits than its factorization.

256516376652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7125454917 (or 7125454912 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 54.

The spelling of 256516376652 in words is "two hundred fifty-six billion, five hundred sixteen million, three hundred seventy-six thousand, six hundred fifty-two".