256101570771 has 8 divisors (see below), whose sum is σ = 345305489040. Its totient is φ = 168816016512.

The previous prime is 256101570691. The next prime is 256101570773. The reversal of 256101570771 is 177075101652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256101570771 - 2⁷ = 256101570643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256101570773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479590690 + ... + 479591223.

It is an arithmetic number, because the mean of its divisors is an integer number (43163186130).

Almost surely, 2^256101570771 is an apocalyptic number.

256101570771 is a deficient number, since it is larger than the sum of its proper divisors (89203918269).

256101570771 is an equidigital number, since it uses as much as digits as its factorization.

256101570771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959182005.

The product of its (nonzero) digits is 102900, while the sum is 42.

The spelling of 256101570771 in words is "two hundred fifty-six billion, one hundred one million, five hundred seventy thousand, seven hundred seventy-one".