2556168616552 has 16 divisors (see below), whose sum is σ = 4795139413440. Its totient is φ = 1277464772976.

The previous prime is 2556168616531. The next prime is 2556168616553.

2556168616552 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (2556168616553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77424378 + ... + 77457385.

It is an arithmetic number, because the mean of its divisors is an integer number (299696213340).

Almost surely, 2^{2556168616552} is an apocalyptic number.

It is an amenable number.

2556168616552 is a deficient number, since it is larger than the sum of its proper divisors (2238970796888).

2556168616552 is a wasteful number, since it uses less digits than its factorization.

2556168616552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154883832 (or 154883828 counting only the distinct ones).

The product of its digits is 25920000, while the sum is 58.

The spelling of 2556168616552 in words is "two trillion, five hundred fifty-six billion, one hundred sixty-eight million, six hundred sixteen thousand, five hundred fifty-two".