166936741 has 2 divisors, whose sum is σ = 166936742. Its totient is φ = 166936740.

The previous prime is 166936733. The next prime is 166936747. The reversal of 166936741 is 147639661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106812225 + 60124516 = 10335^2 + 7754^2 .

It is a cyclic number.

It is not a de Polignac number, because 166936741 - 2³ = 166936733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166936747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83468370 + 83468371.

It is an arithmetic number, because the mean of its divisors is an integer number (83468371).

Almost surely, 2^166936741 is an apocalyptic number.

It is an amenable number.

166936741 is a deficient number, since it is larger than the sum of its proper divisors (1).

166936741 is an equidigital number, since it uses as much as digits as its factorization.

166936741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 166936741 is about 12920.4001873007. The cubic root of 166936741 is about 550.6183029983.

The spelling of 166936741 in words is "one hundred sixty-six million, nine hundred thirty-six thousand, seven hundred forty-one".