166396093 has 2 divisors, whose sum is σ = 166396094. Its totient is φ = 166396092.

The previous prime is 166396079. The next prime is 166396103. The reversal of 166396093 is 390693661.

166396093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124055044 + 42341049 = 11138^2 + 6507^2 .

It is a cyclic number.

It is not a de Polignac number, because 166396093 - 2¹³ = 166387901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166396063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83198046 + 83198047.

It is an arithmetic number, because the mean of its divisors is an integer number (83198047).

Almost surely, 2^166396093 is an apocalyptic number.

It is an amenable number.

166396093 is a deficient number, since it is larger than the sum of its proper divisors (1).

166396093 is an equidigital number, since it uses as much as digits as its factorization.

166396093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 166396093 is about 12899.4609577300. The cubic root of 166396093 is about 550.0232419930.

The spelling of 166396093 in words is "one hundred sixty-six million, three hundred ninety-six thousand, ninety-three".