256022116555 has 32 divisors (see below), whose sum is σ = 312682291200. Its totient is φ = 201214202112.

The previous prime is 256022116523. The next prime is 256022116577. The reversal of 256022116555 is 555611220652.

It is a cyclic number.

It is not a de Polignac number, because 256022116555 - 2⁵ = 256022116523 is a prime.

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, 51792414 + ... + 51797356.

It is an arithmetic number, because the mean of its divisors is an integer number (9771321600).

Almost surely, 2^256022116555 is an apocalyptic number.

256022116555 is a deficient number, since it is larger than the sum of its proper divisors (56660174645).

256022116555 is a wasteful number, since it uses less digits than its factorization.

256022116555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5763.

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 256022116555 in words is "two hundred fifty-six billion, twenty-two million, one hundred sixteen thousand, five hundred fifty-five".