256516472407206 has 16 divisors (see below), whose sum is σ = 559672303434048. Its totient is φ = 77732264365800.

The previous prime is 256516472407187. The next prime is 256516472407231. The reversal of 256516472407206 is 602704274615652.

It is a happy number.

256516472407206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1943306609080 + ... + 1943306609211.

It is an arithmetic number, because the mean of its divisors is an integer number (34979518964628).

Almost surely, 2^{256516472407206} is an apocalyptic number.

256516472407206 is an abundant number, since it is smaller than the sum of its proper divisors (303155831026842).

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

256516472407206 is a wasteful number, since it uses less digits than its factorization.

256516472407206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3886613218307.

The product of its (nonzero) digits is 33868800, while the sum is 57.

The spelling of 256516472407206 in words is "two hundred fifty-six trillion, five hundred sixteen billion, four hundred seventy-two million, four hundred seven thousand, two hundred six".