166942327 has 2 divisors, whose sum is σ = 166942328. Its totient is φ = 166942326.

The previous prime is 166942291. The next prime is 166942343. The reversal of 166942327 is 723249661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166942327 - 2⁷ = 166942199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166942327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166942367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83471163 + 83471164.

It is an arithmetic number, because the mean of its divisors is an integer number (83471164).

Almost surely, 2^166942327 is an apocalyptic number.

166942327 is a deficient number, since it is larger than the sum of its proper divisors (1).

166942327 is an equidigital number, since it uses as much as digits as its factorization.

166942327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 166942327 is about 12920.6163552673. The cubic root of 166942327 is about 550.6244444854.

The spelling of 166942327 in words is "one hundred sixty-six million, nine hundred forty-two thousand, three hundred twenty-seven".