256145151174 has 32 divisors (see below), whose sum is σ = 588275948160. Its totient is φ = 73534492800.

The previous prime is 256145151173. The next prime is 256145151181. The reversal of 256145151174 is 471151541652.

It is a super-2 number, since 2×256145151174² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256145151173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102129987 + ... + 102132494.

It is an arithmetic number, because the mean of its divisors is an integer number (18383623380).

Almost surely, 2^256145151174 is an apocalyptic number.

256145151174 is an abundant number, since it is smaller than the sum of its proper divisors (332130796986).

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

256145151174 is a wasteful number, since it uses less digits than its factorization.

256145151174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204262516.

The product of its digits is 168000, while the sum is 42.

The spelling of 256145151174 in words is "two hundred fifty-six billion, one hundred forty-five million, one hundred fifty-one thousand, one hundred seventy-four".