116565765 has 32 divisors (see below), whose sum is σ = 189737856. Its totient is φ = 61102080.

The previous prime is 116565731. The next prime is 116565767. The reversal of 116565765 is 567565611.

It is not a de Polignac number, because 116565765 - 2⁸ = 116565509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116565767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268989 + ... + 269421.

It is an arithmetic number, because the mean of its divisors is an integer number (5929308).

Almost surely, 2^116565765 is an apocalyptic number.

116565765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

116565765 is a deficient number, since it is larger than the sum of its proper divisors (73172091).

116565765 is a wasteful number, since it uses less digits than its factorization.

116565765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709.

The product of its digits is 189000, while the sum is 42.

The square root of 116565765 is about 10796.5626474355. The cubic root of 116565765 is about 488.4914942608.

The spelling of 116565765 in words is "one hundred sixteen million, five hundred sixty-five thousand, seven hundred sixty-five".