115966866 has 32 divisors (see below), whose sum is σ = 235065600. Its totient is φ = 38137680.

The previous prime is 115966831. The next prime is 115966867. The reversal of 115966866 is 668669511.

It is not an unprimeable number, because it can be changed into a prime (115966867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175645 + ... + 176303.

It is an arithmetic number, because the mean of its divisors is an integer number (7345800).

Almost surely, 2^115966866 is an apocalyptic number.

115966866 is an abundant number, since it is smaller than the sum of its proper divisors (119098734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115966866 is a wasteful number, since it uses less digits than its factorization.

115966866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014.

The product of its digits is 466560, while the sum is 48.

The square root of 115966866 is about 10768.7912970769. The cubic root of 115966866 is about 487.6534564890.

The spelling of 115966866 in words is "one hundred fifteen million, nine hundred sixty-six thousand, eight hundred sixty-six".