166941329 has 2 divisors, whose sum is σ = 166941330. Its totient is φ = 166941328.

The previous prime is 166941317. The next prime is 166941347. The reversal of 166941329 is 923149661.

166941329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91164304 + 75777025 = 9548^2 + 8705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166941329 is a prime.

It is a super-3 number, since 3×166941329³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166941349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83470664 + 83470665.

It is an arithmetic number, because the mean of its divisors is an integer number (83470665).

Almost surely, 2^166941329 is an apocalyptic number.

It is an amenable number.

166941329 is a deficient number, since it is larger than the sum of its proper divisors (1).

166941329 is an equidigital number, since it uses as much as digits as its factorization.

166941329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 166941329 is about 12920.5777347609. The cubic root of 166941329 is about 550.6233472516.

The spelling of 166941329 in words is "one hundred sixty-six million, nine hundred forty-one thousand, three hundred twenty-nine".