115516271009 has 2 divisors, whose sum is σ = 115516271010. Its totient is φ = 115516271008.

The previous prime is 115516270997. The next prime is 115516271071. The reversal of 115516271009 is 900172615511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76853700625 + 38662570384 = 277225^2 + 196628^2 .

It is a cyclic number.

It is not a de Polignac number, because 115516271009 - 2⁴ = 115516270993 is a prime.

It is not a weakly prime, because it can be changed into another prime (115516271089) 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, 57758135504 + 57758135505.

It is an arithmetic number, because the mean of its divisors is an integer number (57758135505).

Almost surely, 2^115516271009 is an apocalyptic number.

It is an amenable number.

115516271009 is a deficient number, since it is larger than the sum of its proper divisors (1).

115516271009 is an equidigital number, since it uses as much as digits as its factorization.

115516271009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 38.

The spelling of 115516271009 in words is "one hundred fifteen billion, five hundred sixteen million, two hundred seventy-one thousand, nine".