256516554154 has 64 divisors (see below), whose sum is σ = 459643403520. Its totient is φ = 105068828160.

The previous prime is 256516554083. The next prime is 256516554211. The reversal of 256516554154 is 451455615652.

256516554154 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 256516554098 and 256516554107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52594764 + ... + 52599640.

It is an arithmetic number, because the mean of its divisors is an integer number (7181928180).

Almost surely, 2^256516554154 is an apocalyptic number.

256516554154 is a deficient number, since it is larger than the sum of its proper divisors (203126849366).

256516554154 is a wasteful number, since it uses less digits than its factorization.

256516554154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703.

The product of its digits is 3600000, while the sum is 49.

The spelling of 256516554154 in words is "two hundred fifty-six billion, five hundred sixteen million, five hundred fifty-four thousand, one hundred fifty-four".