166970339 has 2 divisors, whose sum is σ = 166970340. Its totient is φ = 166970338.

The previous prime is 166970291. The next prime is 166970351. The reversal of 166970339 is 933079661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166970339 - 2²⁴ = 150193123 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166970339.

It is not a weakly prime, because it can be changed into another prime (166970539) 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 as a sum of consecutive naturals, namely, 83485169 + 83485170.

It is an arithmetic number, because the mean of its divisors is an integer number (83485170).

Almost surely, 2^166970339 is an apocalyptic number.

166970339 is a deficient number, since it is larger than the sum of its proper divisors (1).

166970339 is an equidigital number, since it uses as much as digits as its factorization.

166970339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 166970339 is about 12921.7003138132. The cubic root of 166970339 is about 550.6552400094.

The spelling of 166970339 in words is "one hundred sixty-six million, nine hundred seventy thousand, three hundred thirty-nine".