556404404659 has 2 divisors, whose sum is σ = 556404404660. Its totient is φ = 556404404658.

The previous prime is 556404404653. The next prime is 556404404737. The reversal of 556404404659 is 956404404655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556404404659 - 2¹⁵ = 556404371891 is a prime.

It is not a weakly prime, because it can be changed into another prime (556404404653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278202202329 + 278202202330.

It is an arithmetic number, because the mean of its divisors is an integer number (278202202330).

Almost surely, 2^556404404659 is an apocalyptic number.

556404404659 is a deficient number, since it is larger than the sum of its proper divisors (1).

556404404659 is an equidigital number, since it uses as much as digits as its factorization.

556404404659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 556404404659 in words is "five hundred fifty-six billion, four hundred four million, four hundred four thousand, six hundred fifty-nine".