556056606643 has 2 divisors, whose sum is σ = 556056606644. Its totient is φ = 556056606642.

The previous prime is 556056606631. The next prime is 556056606647. The reversal of 556056606643 is 346606650655.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556056606643 - 2¹⁷ = 556056475571 is a prime.

It is not a weakly prime, because it can be changed into another prime (556056606647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278028303321 + 278028303322.

It is an arithmetic number, because the mean of its divisors is an integer number (278028303322).

Almost surely, 2^556056606643 is an apocalyptic number.

556056606643 is a deficient number, since it is larger than the sum of its proper divisors (1).

556056606643 is an equidigital number, since it uses as much as digits as its factorization.

556056606643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664000, while the sum is 52.

The spelling of 556056606643 in words is "five hundred fifty-six billion, fifty-six million, six hundred six thousand, six hundred forty-three".