256467662374023 has 16 divisors (see below), whose sum is σ = 379952705410560. Its totient is φ = 170978165730648.

The previous prime is 256467662374003. The next prime is 256467662374057. The reversal of 256467662374023 is 320473266764652.

It is a happy number.

256467662374023 is a `hidden beast` number, since 2 + 5 + 6 + 467 + 66 + 23 + 74 + 0 + 23 = 666.

It is not a de Polignac number, because 256467662374023 - 2²⁴ = 256467645596807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256467662374003) 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, 10133986 + ... + 24811952.

It is an arithmetic number, because the mean of its divisors is an integer number (23747044088160).

Almost surely, 2^{256467662374023} is an apocalyptic number.

256467662374023 is a deficient number, since it is larger than the sum of its proper divisors (123485043036537).

256467662374023 is a wasteful number, since it uses less digits than its factorization.

256467662374023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15325123 (or 15325117 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 63.

The spelling of 256467662374023 in words is "two hundred fifty-six trillion, four hundred sixty-seven billion, six hundred sixty-two million, three hundred seventy-four thousand, twenty-three".