116111665 has 8 divisors (see below), whose sum is σ = 139749480. Its totient is φ = 92612352.

The previous prime is 116111657. The next prime is 116111669. The reversal of 116111665 is 566111611.

It can be written as a sum of positive squares in 4 ways, for example, as 11826721 + 104284944 = 3439^2 + 10212^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116111665 - 2³ = 116111657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116111669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32770 + ... + 36139.

It is an arithmetic number, because the mean of its divisors is an integer number (17468685).

Almost surely, 2^116111665 is an apocalyptic number.

It is an amenable number.

116111665 is a deficient number, since it is larger than the sum of its proper divisors (23637815).

116111665 is an equidigital number, since it uses as much as digits as its factorization.

116111665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69251.

The product of its digits is 1080, while the sum is 28.

The square root of 116111665 is about 10775.5122848058. The cubic root of 116111665 is about 487.8563373246.

The spelling of 116111665 in words is "one hundred sixteen million, one hundred eleven thousand, six hundred sixty-five".