556227169997 has 2 divisors, whose sum is σ = 556227169998. Its totient is φ = 556227169996.

The previous prime is 556227169991. The next prime is 556227170011. The reversal of 556227169997 is 799961722655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402134807881 + 154092362116 = 634141^2 + 392546^2 .

It is a cyclic number.

It is not a de Polignac number, because 556227169997 - 2¹⁸ = 556226907853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556227169991) 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, 278113584998 + 278113584999.

It is an arithmetic number, because the mean of its divisors is an integer number (278113584999).

Almost surely, 2^556227169997 is an apocalyptic number.

It is an amenable number.

556227169997 is a deficient number, since it is larger than the sum of its proper divisors (1).

556227169997 is an equidigital number, since it uses as much as digits as its factorization.

556227169997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128595600, while the sum is 68.

The spelling of 556227169997 in words is "five hundred fifty-six billion, two hundred twenty-seven million, one hundred sixty-nine thousand, nine hundred ninety-seven".