166363013 has 2 divisors, whose sum is σ = 166363014. Its totient is φ = 166363012.

The previous prime is 166362997. The next prime is 166363027. The reversal of 166363013 is 310363661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139665124 + 26697889 = 11818^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 166363013 - 2⁴ = 166362997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166363213) 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, 83181506 + 83181507.

It is an arithmetic number, because the mean of its divisors is an integer number (83181507).

Almost surely, 2^166363013 is an apocalyptic number.

It is an amenable number.

166363013 is a deficient number, since it is larger than the sum of its proper divisors (1).

166363013 is an equidigital number, since it uses as much as digits as its factorization.

166363013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 166363013 is about 12898.1786698743. The cubic root of 166363013 is about 549.9867908673.

The spelling of 166363013 in words is "one hundred sixty-six million, three hundred sixty-three thousand, thirteen".