115599985099 has 2 divisors, whose sum is σ = 115599985100. Its totient is φ = 115599985098.

The previous prime is 115599985073. The next prime is 115599985133. The reversal of 115599985099 is 990589995511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115599985099 is a prime.

It is not a weakly prime, because it can be changed into another prime (115599955099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57799992549 + 57799992550.

It is an arithmetic number, because the mean of its divisors is an integer number (57799992550).

Almost surely, 2^115599985099 is an apocalyptic number.

115599985099 is a deficient number, since it is larger than the sum of its proper divisors (1).

115599985099 is an equidigital number, since it uses as much as digits as its factorization.

115599985099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 59049000, while the sum is 70.

The spelling of 115599985099 in words is "one hundred fifteen billion, five hundred ninety-nine million, nine hundred eighty-five thousand, ninety-nine".