256034232153 has 32 divisors (see below), whose sum is σ = 433596844800. Its totient is φ = 146271616128.

The previous prime is 256034232109. The next prime is 256034232161. The reversal of 256034232153 is 351232430652.

256034232153 is a `hidden beast` number, since 2 + 5 + 603 + 4 + 2 + 32 + 15 + 3 = 666.

It is not a de Polignac number, because 256034232153 - 2⁶ = 256034232089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256034232173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 679675 + ... + 986927.

It is an arithmetic number, because the mean of its divisors is an integer number (13549901400).

Almost surely, 2^256034232153 is an apocalyptic number.

It is an amenable number.

256034232153 is a deficient number, since it is larger than the sum of its proper divisors (177562612647).

256034232153 is a wasteful number, since it uses less digits than its factorization.

256034232153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311678 (or 311672 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 256034232153 in words is "two hundred fifty-six billion, thirty-four million, two hundred thirty-two thousand, one hundred fifty-three".