2556889030611 has 12 divisors (see below), whose sum is σ = 3722365134592. Its totient is φ = 1691170696656.

The previous prime is 2556889030541. The next prime is 2556889030613. The reversal of 2556889030611 is 1160309886552.

2556889030611 is a `hidden beast` number, since 2 + 556 + 8 + 89 + 0 + 3 + 0 + 6 + 1 + 1 = 666.

It is not a de Polignac number, because 2556889030611 - 2²¹ = 2556886933459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2556889030613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1118497996 + ... + 1118500281.

Almost surely, 2^{2556889030611} is an apocalyptic number.

2556889030611 is a deficient number, since it is larger than the sum of its proper divisors (1165476103981).

2556889030611 is a wasteful number, since it uses less digits than its factorization.

2556889030611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236998410 (or 2236998407 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 2556889030611 in words is "two trillion, five hundred fifty-six billion, eight hundred eighty-nine million, thirty thousand, six hundred eleven".