166694339 has 16 divisors (see below), whose sum is σ = 193910976. Its totient is φ = 140352000.

The previous prime is 166694329. The next prime is 166694351. The reversal of 166694339 is 933496661.

It is a cyclic number.

It is not a de Polignac number, because 166694339 - 2⁸ = 166694083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166694293 and 166694302.

It is not an unprimeable number, because it can be changed into a prime (166694309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95999 + ... + 97719.

It is an arithmetic number, because the mean of its divisors is an integer number (12119436).

Almost surely, 2^166694339 is an apocalyptic number.

166694339 is a deficient number, since it is larger than the sum of its proper divisors (27216637).

166694339 is a wasteful number, since it uses less digits than its factorization.

166694339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966.

The product of its digits is 629856, while the sum is 47.

The square root of 166694339 is about 12911.0161877367. The cubic root of 166694339 is about 550.3516638074.

The spelling of 166694339 in words is "one hundred sixty-six million, six hundred ninety-four thousand, three hundred thirty-nine".