664348159 has 2 divisors, whose sum is σ = 664348160. Its totient is φ = 664348158.

The previous prime is 664348109. The next prime is 664348177. The reversal of 664348159 is 951843466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 664348159 - 2⁹ = 664347647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664348109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332174079 + 332174080.

It is an arithmetic number, because the mean of its divisors is an integer number (332174080).

Almost surely, 2^664348159 is an apocalyptic number.

664348159 is a deficient number, since it is larger than the sum of its proper divisors (1).

664348159 is an equidigital number, since it uses as much as digits as its factorization.

664348159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 46.

The square root of 664348159 is about 25774.9521629042. The cubic root of 664348159 is about 872.5665869822.

The spelling of 664348159 in words is "six hundred sixty-four million, three hundred forty-eight thousand, one hundred fifty-nine".