166465093 has 2 divisors, whose sum is σ = 166465094. Its totient is φ = 166465092.

The previous prime is 166465081. The next prime is 166465097. The reversal of 166465093 is 390564661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157803844 + 8661249 = 12562^2 + 2943^2 .

It is a cyclic number.

It is not a de Polignac number, because 166465093 - 2⁹ = 166464581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166465097) 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, 83232546 + 83232547.

It is an arithmetic number, because the mean of its divisors is an integer number (83232547).

Almost surely, 2^166465093 is an apocalyptic number.

It is an amenable number.

166465093 is a deficient number, since it is larger than the sum of its proper divisors (1).

166465093 is an equidigital number, since it uses as much as digits as its factorization.

166465093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 166465093 is about 12902.1352108866. The cubic root of 166465093 is about 550.0992581189.

The spelling of 166465093 in words is "one hundred sixty-six million, four hundred sixty-five thousand, ninety-three".