166664341 has 2 divisors, whose sum is σ = 166664342. Its totient is φ = 166664340.

The previous prime is 166664299. The next prime is 166664347. The reversal of 166664341 is 143466661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166539025 + 125316 = 12905^2 + 354^2 .

It is a cyclic number.

It is not a de Polignac number, because 166664341 - 2⁷ = 166664213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166664341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166664347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83332170 + 83332171.

It is an arithmetic number, because the mean of its divisors is an integer number (83332171).

Almost surely, 2^166664341 is an apocalyptic number.

It is an amenable number.

166664341 is a deficient number, since it is larger than the sum of its proper divisors (1).

166664341 is an equidigital number, since it uses as much as digits as its factorization.

166664341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 37.

The square root of 166664341 is about 12909.8544143611. The cubic root of 166664341 is about 550.3186484098.

The spelling of 166664341 in words is "one hundred sixty-six million, six hundred sixty-four thousand, three hundred forty-one".