555616975117 has 2 divisors, whose sum is σ = 555616975118. Its totient is φ = 555616975116.

The previous prime is 555616975097. The next prime is 555616975157. The reversal of 555616975117 is 711579616555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 547320315721 + 8296659396 = 739811^2 + 91086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555616975117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555616975157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277808487558 + 277808487559.

It is an arithmetic number, because the mean of its divisors is an integer number (277808487559).

Almost surely, 2^555616975117 is an apocalyptic number.

It is an amenable number.

555616975117 is a deficient number, since it is larger than the sum of its proper divisors (1).

555616975117 is an equidigital number, since it uses as much as digits as its factorization.

555616975117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9922500, while the sum is 58.

The spelling of 555616975117 in words is "five hundred fifty-five billion, six hundred sixteen million, nine hundred seventy-five thousand, one hundred seventeen".