166929029 has 2 divisors, whose sum is σ = 166929030. Its totient is φ = 166929028.

The previous prime is 166929013. The next prime is 166929043. The reversal of 166929029 is 920929661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104550625 + 62378404 = 10225^2 + 7898^2 .

It is a cyclic number.

It is not a de Polignac number, because 166929029 - 2⁴ = 166929013 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166929229) 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, 83464514 + 83464515.

It is an arithmetic number, because the mean of its divisors is an integer number (83464515).

Almost surely, 2^166929029 is an apocalyptic number.

It is an amenable number.

166929029 is a deficient number, since it is larger than the sum of its proper divisors (1).

166929029 is an equidigital number, since it uses as much as digits as its factorization.

166929029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 166929029 is about 12920.1017410855. The cubic root of 166929029 is about 550.6098238708.

The spelling of 166929029 in words is "one hundred sixty-six million, nine hundred twenty-nine thousand, twenty-nine".