256500356011476 has 12 divisors (see below), whose sum is σ = 598500830693472. Its totient is φ = 85500118670488.

The previous prime is 256500356011451. The next prime is 256500356011589. The reversal of 256500356011476 is 674110653005652.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10687514833800 + ... + 10687514833823.

It is an arithmetic number, because the mean of its divisors is an integer number (49875069224456).

Almost surely, 2^{256500356011476} is an apocalyptic number.

It is an amenable number.

256500356011476 is an abundant number, since it is smaller than the sum of its proper divisors (342000474681996).

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

256500356011476 is a wasteful number, since it uses less digits than its factorization.

256500356011476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21375029667630 (or 21375029667628 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 51.

The spelling of 256500356011476 in words is "two hundred fifty-six trillion, five hundred billion, three hundred fifty-six million, eleven thousand, four hundred seventy-six".