116515665 has 80 divisors (see below), whose sum is σ = 242402688. Its totient is φ = 52441344.

The previous prime is 116515601. The next prime is 116515667. The reversal of 116515665 is 566515611.

It is not a de Polignac number, because 116515665 - 2⁶ = 116515601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116515667) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 206674 + ... + 207236.

Almost surely, 2^116515665 is an apocalyptic number.

116515665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

116515665 is an abundant number, since it is smaller than the sum of its proper divisors (125887023).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116515665 is an equidigital number, since it uses as much as digits as its factorization.

116515665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 651 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 116515665 is about 10794.2422151812. The cubic root of 116515665 is about 488.4214996361.

The spelling of 116515665 in words is "one hundred sixteen million, five hundred fifteen thousand, six hundred sixty-five".