256118639153214 has 8 divisors (see below), whose sum is σ = 512237278306440. Its totient is φ = 85372879717736.

The previous prime is 256118639153189. The next prime is 256118639153219. The reversal of 256118639153214 is 412351936811652.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

256118639153214 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256118639153219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21343219929429 + ... + 21343219929440.

It is an arithmetic number, because the mean of its divisors is an integer number (64029659788305).

Almost surely, 2^{256118639153214} is an apocalyptic number.

256118639153214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256118639153214 is a wasteful number, since it uses less digits than its factorization.

256118639153214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42686439858874.

The product of its digits is 9331200, while the sum is 57.

The spelling of 256118639153214 in words is "two hundred fifty-six trillion, one hundred eighteen billion, six hundred thirty-nine million, one hundred fifty-three thousand, two hundred fourteen".