556005100561 has 16 divisors (see below), whose sum is σ = 582406007040. Its totient is φ = 529791894720.

The previous prime is 556005100549. The next prime is 556005100577. The reversal of 556005100561 is 165001500655.

It is a cyclic number.

It is not a de Polignac number, because 556005100561 - 2²⁹ = 555468229649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556005100501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11915071 + ... + 11961643.

It is an arithmetic number, because the mean of its divisors is an integer number (36400375440).

Almost surely, 2^556005100561 is an apocalyptic number.

It is an amenable number.

556005100561 is a deficient number, since it is larger than the sum of its proper divisors (26400906479).

556005100561 is a wasteful number, since it uses less digits than its factorization.

556005100561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48576.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 556005100561 in words is "five hundred fifty-six billion, five million, one hundred thousand, five hundred sixty-one".