2556170464 has 12 divisors (see below), whose sum is σ = 5032460664. Its totient is φ = 1278085216.

The previous prime is 2556170447. The next prime is 2556170483. The reversal of 2556170464 is 4640716552.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39940132 + ... + 39940195.

It is an arithmetic number, because the mean of its divisors is an integer number (419371722).

Almost surely, 2^2556170464 is an apocalyptic number.

It is an amenable number.

2556170464 is a deficient number, since it is larger than the sum of its proper divisors (2476290200).

2556170464 is an equidigital number, since it uses as much as digits as its factorization.

2556170464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79880337 (or 79880329 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 2556170464 is about 50558.5844738557. The cubic root of 2556170464 is about 1367.2982904197.

The spelling of 2556170464 in words is "two billion, five hundred fifty-six million, one hundred seventy thousand, four hundred sixty-four".