556161244201 has 2 divisors, whose sum is σ = 556161244202. Its totient is φ = 556161244200.

The previous prime is 556161244183. The next prime is 556161244217. The reversal of 556161244201 is 102442161655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 464136988176 + 92024256025 = 681276^2 + 303355^2 .

It is a cyclic number.

It is not a de Polignac number, because 556161244201 - 2⁵ = 556161244169 is a prime.

It is a super-2 number, since 2×556161244201² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (556161241201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278080622100 + 278080622101.

It is an arithmetic number, because the mean of its divisors is an integer number (278080622101).

Almost surely, 2^556161244201 is an apocalyptic number.

It is an amenable number.

556161244201 is a deficient number, since it is larger than the sum of its proper divisors (1).

556161244201 is an equidigital number, since it uses as much as digits as its factorization.

556161244201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 556161244201 in words is "five hundred fifty-six billion, one hundred sixty-one million, two hundred forty-four thousand, two hundred one".