556118798957 has 2 divisors, whose sum is σ = 556118798958. Its totient is φ = 556118798956.

The previous prime is 556118798953. The next prime is 556118798981. The reversal of 556118798957 is 759897811655.

556118798957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357970069636 + 198148729321 = 598306^2 + 445139^2 .

It is a cyclic number.

It is not a de Polignac number, because 556118798957 - 2² = 556118798953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556118798953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278059399478 + 278059399479.

It is an arithmetic number, because the mean of its divisors is an integer number (278059399479).

Almost surely, 2^556118798957 is an apocalyptic number.

It is an amenable number.

556118798957 is a deficient number, since it is larger than the sum of its proper divisors (1).

556118798957 is an equidigital number, since it uses as much as digits as its factorization.

556118798957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512000, while the sum is 71.

The spelling of 556118798957 in words is "five hundred fifty-six billion, one hundred eighteen million, seven hundred ninety-eight thousand, nine hundred fifty-seven".