116811885 has 16 divisors (see below), whose sum is σ = 187067520. Its totient is φ = 62243520.

The previous prime is 116811883. The next prime is 116811901. The reversal of 116811885 is 588118611.

It is not a de Polignac number, because 116811885 - 2¹ = 116811883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116811883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17896 + ... + 23534.

It is an arithmetic number, because the mean of its divisors is an integer number (11691720).

Almost surely, 2^116811885 is an apocalyptic number.

116811885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

116811885 is a deficient number, since it is larger than the sum of its proper divisors (70255635).

116811885 is a wasteful number, since it uses less digits than its factorization.

116811885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7028.

The product of its digits is 15360, while the sum is 39.

The square root of 116811885 is about 10807.9547093796. The cubic root of 116811885 is about 488.8350571371.

The spelling of 116811885 in words is "one hundred sixteen million, eight hundred eleven thousand, eight hundred eighty-five".