166065307 has 2 divisors, whose sum is σ = 166065308. Its totient is φ = 166065306.

The previous prime is 166065283. The next prime is 166065323. The reversal of 166065307 is 703560661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166065307 - 2¹⁵ = 166032539 is a prime.

It is equal to p_9295081 and since 166065307 and 9295081 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (166065007) 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, 83032653 + 83032654.

It is an arithmetic number, because the mean of its divisors is an integer number (83032654).

Almost surely, 2^166065307 is an apocalyptic number.

166065307 is a deficient number, since it is larger than the sum of its proper divisors (1).

166065307 is an equidigital number, since it uses as much as digits as its factorization.

166065307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 166065307 is about 12886.6328806248. The cubic root of 166065307 is about 549.6585285347.

The spelling of 166065307 in words is "one hundred sixty-six million, sixty-five thousand, three hundred seven".