256123226663084 has 48 divisors (see below), whose sum is σ = 521022636882720. Its totient is φ = 108873526594560.

The previous prime is 256123226663047. The next prime is 256123226663131. The reversal of 256123226663084 is 480366622321652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1090362599 + ... + 1090597470.

It is an arithmetic number, because the mean of its divisors is an integer number (10854638268390).

Almost surely, 2^{256123226663084} is an apocalyptic number.

It is an amenable number.

256123226663084 is an abundant number, since it is smaller than the sum of its proper divisors (264899410219636).

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

256123226663084 is a wasteful number, since it uses less digits than its factorization.

256123226663084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180960258 (or 2180960256 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 56.

The spelling of 256123226663084 in words is "two hundred fifty-six trillion, one hundred twenty-three billion, two hundred twenty-six million, six hundred sixty-three thousand, eighty-four".