256171277150 has 24 divisors (see below), whose sum is σ = 478872958800. Its totient is φ = 101953589760.

The previous prime is 256171277149. The next prime is 256171277177. The reversal of 256171277150 is 51772171652.

256171277150 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256171277150² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12862979 + ... + 12882878.

It is an arithmetic number, because the mean of its divisors is an integer number (19953039950).

Almost surely, 2^256171277150 is an apocalyptic number.

256171277150 is a deficient number, since it is larger than the sum of its proper divisors (222701681650).

256171277150 is a wasteful number, since it uses less digits than its factorization.

256171277150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25746068 (or 25746063 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 44.

The spelling of 256171277150 in words is "two hundred fifty-six billion, one hundred seventy-one million, two hundred seventy-seven thousand, one hundred fifty".