116666239 has 4 divisors (see below), whose sum is σ = 116688960. Its totient is φ = 116643520.

The previous prime is 116666233. The next prime is 116666243. The reversal of 116666239 is 932666611.

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

It is a cyclic number.

It is not a de Polignac number, because 116666239 - 2²⁵ = 83111807 is a prime.

It is a super-2 number, since 2×116666239² = 27222022644810242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116666233) 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, 402 + ... + 15280.

It is an arithmetic number, because the mean of its divisors is an integer number (29172240).

Almost surely, 2^116666239 is an apocalyptic number.

116666239 is a deficient number, since it is larger than the sum of its proper divisors (22721).

116666239 is an equidigital number, since it uses as much as digits as its factorization.

116666239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22720.

The product of its digits is 69984, while the sum is 40.

The square root of 116666239 is about 10801.2147002085. The cubic root of 116666239 is about 488.6318058964.

The spelling of 116666239 in words is "one hundred sixteen million, six hundred sixty-six thousand, two hundred thirty-nine".