116116645 has 4 divisors (see below), whose sum is σ = 139339980. Its totient is φ = 92893312.

The previous prime is 116116631. The next prime is 116116709. The reversal of 116116645 is 546611611.

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 37368769 + 78747876 = 6113^2 + 8874^2 .

It is a cyclic number.

It is not a de Polignac number, because 116116645 - 2²³ = 107728037 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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, 11611660 + ... + 11611669.

It is an arithmetic number, because the mean of its divisors is an integer number (34834995).

Almost surely, 2^116116645 is an apocalyptic number.

It is an amenable number.

116116645 is a deficient number, since it is larger than the sum of its proper divisors (23223335).

116116645 is an equidigital number, since it uses as much as digits as its factorization.

116116645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23223334.

The product of its digits is 4320, while the sum is 31.

The square root of 116116645 is about 10775.7433618289. The cubic root of 116116645 is about 487.8633119033.

The spelling of 116116645 in words is "one hundred sixteen million, one hundred sixteen thousand, six hundred forty-five".