256542256014 has 64 divisors (see below), whose sum is σ = 597552049152. Its totient is φ = 73167093120.

The previous prime is 256542256007. The next prime is 256542256063. The reversal of 256542256014 is 410652245652.

It is a happy number.

It is a congruent number.

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, 809062 + ... + 1080585.

It is an arithmetic number, because the mean of its divisors is an integer number (9336750768).

Almost surely, 2^256542256014 is an apocalyptic number.

256542256014 is an abundant number, since it is smaller than the sum of its proper divisors (341009793138).

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

256542256014 is a wasteful number, since it uses less digits than its factorization.

256542256014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889702 (or 1889680 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 256542256014 in words is "two hundred fifty-six billion, five hundred forty-two million, two hundred fifty-six thousand, fourteen".