256204177124 has 36 divisors (see below), whose sum is σ = 521595680256. Its totient is φ = 109793963664.

The previous prime is 256204177109. The next prime is 256204177147. The reversal of 256204177124 is 421771402652.

256204177124 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 2×256204177124² (a number of 24 digits) contains 22 as substring.

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, 3334589 + ... + 3410555.

It is an arithmetic number, because the mean of its divisors is an integer number (14488768896).

Almost surely, 2^256204177124 is an apocalyptic number.

It is an amenable number.

256204177124 is an abundant number, since it is smaller than the sum of its proper divisors (265391503132).

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

256204177124 is a wasteful number, since it uses less digits than its factorization.

256204177124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93192 (or 93183 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

Adding to 256204177124 its reverse (421771402652), we get a palindrome (677975579776).

The spelling of 256204177124 in words is "two hundred fifty-six billion, two hundred four million, one hundred seventy-seven thousand, one hundred twenty-four".