116688915 has 24 divisors (see below), whose sum is σ = 231155808. Its totient is φ = 53343360.

The previous prime is 116688907. The next prime is 116688917. The reversal of 116688915 is 519886611.

It is not a de Polignac number, because 116688915 - 2³ = 116688907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (116688917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184906 + ... + 185535.

It is an arithmetic number, because the mean of its divisors is an integer number (9631492).

Almost surely, 2^116688915 is an apocalyptic number.

116688915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

116688915 is a deficient number, since it is larger than the sum of its proper divisors (114466893).

116688915 is a wasteful number, since it uses less digits than its factorization.

116688915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370459 (or 370456 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 116688915 is about 10802.2643459601. The cubic root of 116688915 is about 488.6634617183.

The spelling of 116688915 in words is "one hundred sixteen million, six hundred eighty-eight thousand, nine hundred fifteen".