116166609 has 32 divisors (see below), whose sum is σ = 186748800. Its totient is φ = 70943040.

The previous prime is 116166553. The next prime is 116166613. The reversal of 116166609 is 906661611.

It is not a de Polignac number, because 116166609 - 2⁷ = 116166481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116166679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47599 + ... + 49979.

It is an arithmetic number, because the mean of its divisors is an integer number (5835900).

Almost surely, 2^116166609 is an apocalyptic number.

It is an amenable number.

116166609 is a deficient number, since it is larger than the sum of its proper divisors (70582191).

116166609 is a wasteful number, since it uses less digits than its factorization.

116166609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542 (or 2536 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 116166609 is about 10778.0614676295. The cubic root of 116166609 is about 487.9332763405.

It can be divided in two parts, 11616 and 6609, that added together give a square (18225 = 135²).

The spelling of 116166609 in words is "one hundred sixteen million, one hundred sixty-six thousand, six hundred nine".