166386307 has 8 divisors (see below), whose sum is σ = 170717184. Its totient is φ = 162076488.

The previous prime is 166386277. The next prime is 166386413. The reversal of 166386307 is 703683661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166386307 - 2⁷ = 166386179 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 166386307.

It is not an unprimeable number, because it can be changed into a prime (166386007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11418 + ... + 21520.

It is an arithmetic number, because the mean of its divisors is an integer number (21339648).

Almost surely, 2^166386307 is an apocalyptic number.

166386307 is a deficient number, since it is larger than the sum of its proper divisors (4330877).

166386307 is a wasteful number, since it uses less digits than its factorization.

166386307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10529.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 166386307 is about 12899.0816339769. The cubic root of 166386307 is about 550.0124592219.

The spelling of 166386307 in words is "one hundred sixty-six million, three hundred eighty-six thousand, three hundred seven".