116111155 has 4 divisors (see below), whose sum is σ = 139333392. Its totient is φ = 92888920.

The previous prime is 116111131. The next prime is 116111161. The reversal of 116111155 is 551111611.

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

It is a de Polignac number, because none of the positive numbers 2^k-116111155 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11611111 + ... + 11611120.

It is an arithmetic number, because the mean of its divisors is an integer number (34833348).

Almost surely, 2^116111155 is an apocalyptic number.

116111155 is a deficient number, since it is larger than the sum of its proper divisors (23222237).

116111155 is an equidigital number, since it uses as much as digits as its factorization.

116111155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23222236.

The product of its digits is 150, while the sum is 22.

The square root of 116111155 is about 10775.4886200116. The cubic root of 116111155 is about 487.8556230493.

Adding to 116111155 its reverse (551111611), we get a palindrome (667222766).

The spelling of 116111155 in words is "one hundred sixteen million, one hundred eleven thousand, one hundred fifty-five".