115566115 has 16 divisors (see below), whose sum is σ = 158961600. Its totient is φ = 79009920.

The previous prime is 115566097. The next prime is 115566127. The reversal of 115566115 is 511665511.

It is not a de Polignac number, because 115566115 - 2⁷ = 115565987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7485 + ... + 16945.

It is an arithmetic number, because the mean of its divisors is an integer number (9935100).

Almost surely, 2^115566115 is an apocalyptic number.

115566115 is a deficient number, since it is larger than the sum of its proper divisors (43395485).

115566115 is an equidigital number, since it uses as much as digits as its factorization.

115566115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9822.

The product of its digits is 4500, while the sum is 31.

The square root of 115566115 is about 10750.1681382200. The cubic root of 115566115 is about 487.0910741300.

It can be divided in two parts, 11556 and 6115, that added together give a palindrome (17671).

The spelling of 115566115 in words is "one hundred fifteen million, five hundred sixty-six thousand, one hundred fifteen".