166683339 has 20 divisors (see below), whose sum is σ = 252006216. Its totient is φ = 109778976.

The previous prime is 166683331. The next prime is 166683343. The reversal of 166683339 is 933386661.

It is not a de Polignac number, because 166683339 - 2³ = 166683331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166683294 and 166683303.

It is not an unprimeable number, because it can be changed into a prime (166683331) 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 19 ways as a sum of consecutive naturals, for example, 5674 + ... + 19119.

Almost surely, 2^166683339 is an apocalyptic number.

166683339 is a deficient number, since it is larger than the sum of its proper divisors (85322877).

166683339 is an equidigital number, since it uses as much as digits as its factorization.

166683339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24888 (or 24879 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 166683339 is about 12910.5901879039. The cubic root of 166683339 is about 550.3395578145.

The spelling of 166683339 in words is "one hundred sixty-six million, six hundred eighty-three thousand, three hundred thirty-nine".