166790167 has 2 divisors, whose sum is σ = 166790168. Its totient is φ = 166790166.

The previous prime is 166790161. The next prime is 166790201. The reversal of 166790167 is 761097661.

It is a weak prime.

It is an emirp because it is prime and its reverse (761097661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166790167 - 2³ = 166790159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166790161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83395083 + 83395084.

It is an arithmetic number, because the mean of its divisors is an integer number (83395084).

Almost surely, 2^166790167 is an apocalyptic number.

166790167 is a deficient number, since it is larger than the sum of its proper divisors (1).

166790167 is an equidigital number, since it uses as much as digits as its factorization.

166790167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 166790167 is about 12914.7267489483. The cubic root of 166790167 is about 550.4571042935.

The spelling of 166790167 in words is "one hundred sixty-six million, seven hundred ninety thousand, one hundred sixty-seven".