2556016016 has 20 divisors (see below), whose sum is σ = 4958338524. Its totient is φ = 1276444800.

The previous prime is 2556016003. The next prime is 2556016027. The reversal of 2556016016 is 6106106552.

It can be written as a sum of positive squares in 2 ways, for example, as 1895731600 + 660284416 = 43540^2 + 25696^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84155 + ... + 110426.

Almost surely, 2^2556016016 is an apocalyptic number.

It is an amenable number.

2556016016 is a deficient number, since it is larger than the sum of its proper divisors (2402322508).

2556016016 is a wasteful number, since it uses less digits than its factorization.

2556016016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195410 (or 195404 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 2556016016 is about 50557.0570346020. The cubic root of 2556016016 is about 1367.2707517320.

The spelling of 2556016016 in words is "two billion, five hundred fifty-six million, sixteen thousand, sixteen".