116111165 has 4 divisors (see below), whose sum is σ = 139333404. Its totient is φ = 92888928.

The previous prime is 116111161. The next prime is 116111227. The reversal of 116111165 is 561111611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36312676 + 79798489 = 6026^2 + 8933^2 .

It is a cyclic number.

It is not a de Polignac number, because 116111165 - 2² = 116111161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116111165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116111161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11611112 + ... + 11611121.

It is an arithmetic number, because the mean of its divisors is an integer number (34833351).

Almost surely, 2^116111165 is an apocalyptic number.

It is an amenable number.

116111165 is a deficient number, since it is larger than the sum of its proper divisors (23222239).

116111165 is an equidigital number, since it uses as much as digits as its factorization.

116111165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23222238.

The product of its digits is 180, while the sum is 23.

The square root of 116111165 is about 10775.4890840277. The cubic root of 116111165 is about 487.8556370547.

Adding to 116111165 its reverse (561111611), we get a palindrome (677222776).

The spelling of 116111165 in words is "one hundred sixteen million, one hundred eleven thousand, one hundred sixty-five".