116565665 has 16 divisors (see below), whose sum is σ = 150837120. Its totient is φ = 86186880.

The previous prime is 116565649. The next prime is 116565677. The reversal of 116565665 is 566565611.

It is not a de Polignac number, because 116565665 - 2⁴ = 116565649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 11069 + ... + 18858.

It is an arithmetic number, because the mean of its divisors is an integer number (9427320).

Almost surely, 2^116565665 is an apocalyptic number.

It is an amenable number.

116565665 is a deficient number, since it is larger than the sum of its proper divisors (34271455).

116565665 is a wasteful number, since it uses less digits than its factorization.

116565665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29992.

The product of its digits is 162000, while the sum is 41.

The square root of 116565665 is about 10796.5580163309. The cubic root of 116565665 is about 488.4913545710.

The spelling of 116565665 in words is "one hundred sixteen million, five hundred sixty-five thousand, six hundred sixty-five".