116640859 has 16 divisors (see below), whose sum is σ = 128350656. Its totient is φ = 105548800.

The previous prime is 116640857. The next prime is 116640899. The reversal of 116640859 is 958046611.

It is a cyclic number.

It is not a de Polignac number, because 116640859 - 2¹ = 116640857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116640857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48309 + ... + 50665.

It is an arithmetic number, because the mean of its divisors is an integer number (8021916).

Almost surely, 2^116640859 is an apocalyptic number.

116640859 is a deficient number, since it is larger than the sum of its proper divisors (11709797).

116640859 is a wasteful number, since it uses less digits than its factorization.

116640859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 116640859 is about 10800.0397684453. The cubic root of 116640859 is about 488.5963704104.

It can be divided in two parts, 1166 and 40859, that added together give a square (42025 = 205²).

The spelling of 116640859 in words is "one hundred sixteen million, six hundred forty thousand, eight hundred fifty-nine".