556173511169 has 2 divisors, whose sum is σ = 556173511170. Its totient is φ = 556173511168.

The previous prime is 556173511139. The next prime is 556173511213. The reversal of 556173511169 is 961115371655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 338854380544 + 217319130625 = 582112^2 + 466175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556173511169 is a prime.

It is a super-2 number, since 2×556173511169² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (556173511139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278086755584 + 278086755585.

It is an arithmetic number, because the mean of its divisors is an integer number (278086755585).

Almost surely, 2^556173511169 is an apocalyptic number.

It is an amenable number.

556173511169 is a deficient number, since it is larger than the sum of its proper divisors (1).

556173511169 is an equidigital number, since it uses as much as digits as its factorization.

556173511169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 850500, while the sum is 50.

The spelling of 556173511169 in words is "five hundred fifty-six billion, one hundred seventy-three million, five hundred eleven thousand, one hundred sixty-nine".