2556338065315 has 16 divisors (see below), whose sum is σ = 3095672989536. Its totient is φ = 2026369676800.

The previous prime is 2556338065283. The next prime is 2556338065331. The reversal of 2556338065315 is 5135608336552.

It is not a de Polignac number, because 2556338065315 - 2⁵ = 2556338065283 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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1233525 + ... + 2575705.

It is an arithmetic number, because the mean of its divisors is an integer number (193479561846).

Almost surely, 2^{2556338065315} is an apocalyptic number.

2556338065315 is a deficient number, since it is larger than the sum of its proper divisors (539334924221).

2556338065315 is a wasteful number, since it uses less digits than its factorization.

2556338065315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345670.

The product of its (nonzero) digits is 9720000, while the sum is 52.

The spelling of 2556338065315 in words is "two trillion, five hundred fifty-six billion, three hundred thirty-eight million, sixty-five thousand, three hundred fifteen".