2256640673795 has 16 divisors (see below), whose sum is σ = 2799927902208. Its totient is φ = 1744198362720.

The previous prime is 2256640673789. The next prime is 2256640673843. The reversal of 2256640673795 is 5973760466522.

It is not a de Polignac number, because 2256640673795 - 2³⁴ = 2239460804611 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11898479 + ... + 12086648.

It is an arithmetic number, because the mean of its divisors is an integer number (174995493888).

Almost surely, 2^{2256640673795} is an apocalyptic number.

2256640673795 is a deficient number, since it is larger than the sum of its proper divisors (543287228413).

2256640673795 is a wasteful number, since it uses less digits than its factorization.

2256640673795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23985770.

The product of its (nonzero) digits is 114307200, while the sum is 62.

The spelling of 2256640673795 in words is "two trillion, two hundred fifty-six billion, six hundred forty million, six hundred seventy-three thousand, seven hundred ninety-five".