256611503044144 has 40 divisors (see below), whose sum is σ = 497416238711568. Its totient is φ = 128246025492480.

The previous prime is 256611503044093. The next prime is 256611503044153. The reversal of 256611503044144 is 441440305116652.

It is a junction number, because it is equal to n+sod(n) for n = 256611503044094 and 256611503044103.

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, 1515090024 + ... + 1515259384.

Almost surely, 2^{256611503044144} is an apocalyptic number.

It is an amenable number.

256611503044144 is a deficient number, since it is larger than the sum of its proper divisors (240804735667424).

256611503044144 is a wasteful number, since it uses less digits than its factorization.

256611503044144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212893 (or 212887 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 256611503044144 in words is "two hundred fifty-six trillion, six hundred eleven billion, five hundred three million, forty-four thousand, one hundred forty-four".