115666475 has 6 divisors (see below), whose sum is σ = 143426460. Its totient is φ = 92533160.

The previous prime is 115666459. The next prime is 115666489. The reversal of 115666475 is 574666511.

It is not a de Polignac number, because 115666475 - 2⁴ = 115666459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2313305 + ... + 2313354.

It is an arithmetic number, because the mean of its divisors is an integer number (23904410).

Almost surely, 2^115666475 is an apocalyptic number.

115666475 is a deficient number, since it is larger than the sum of its proper divisors (27759985).

115666475 is an equidigital number, since it uses as much as digits as its factorization.

115666475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626669 (or 4626664 counting only the distinct ones).

The product of its digits is 151200, while the sum is 41.

The square root of 115666475 is about 10754.8349592172. The cubic root of 115666475 is about 487.2320333153.

The spelling of 115666475 in words is "one hundred fifteen million, six hundred sixty-six thousand, four hundred seventy-five".