256611362760376 has 64 divisors (see below), whose sum is σ = 566335397134080. Its totient is φ = 107873408931840.

The previous prime is 256611362760371. The next prime is 256611362760443. The reversal of 256611362760376 is 673067263116652.

It is a happy number.

It is a super-2 number, since 2×256611362760376² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256611362760371) 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, 2340947991 + ... + 2341057606.

It is an arithmetic number, because the mean of its divisors is an integer number (8848990580220).

Almost surely, 2^{256611362760376} is an apocalyptic number.

256611362760376 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

256611362760376 is an abundant number, since it is smaller than the sum of its proper divisors (309724034373704).

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

256611362760376 is a wasteful number, since it uses less digits than its factorization.

256611362760376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682005664 (or 4682005660 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 61.

The spelling of 256611362760376 in words is "two hundred fifty-six trillion, six hundred eleven billion, three hundred sixty-two million, seven hundred sixty thousand, three hundred seventy-six".