556000665569 has 2 divisors, whose sum is σ = 556000665570. Its totient is φ = 556000665568.

The previous prime is 556000665511. The next prime is 556000665617. The reversal of 556000665569 is 965566000655.

556000665569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 513605855569 + 42394810000 = 716663^2 + 205900^2 .

It is a cyclic number.

It is not a de Polignac number, because 556000665569 - 2³⁶ = 487281188833 is a prime.

It is a super-2 number, since 2×556000665569² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 556000665569.

It is not a weakly prime, because it can be changed into another prime (556000625569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278000332784 + 278000332785.

It is an arithmetic number, because the mean of its divisors is an integer number (278000332785).

Almost surely, 2^556000665569 is an apocalyptic number.

It is an amenable number.

556000665569 is a deficient number, since it is larger than the sum of its proper divisors (1).

556000665569 is an equidigital number, since it uses as much as digits as its factorization.

556000665569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290000, while the sum is 53.

The spelling of 556000665569 in words is "five hundred fifty-six billion, six hundred sixty-five thousand, five hundred sixty-nine".