664334611 has 2 divisors, whose sum is σ = 664334612. Its totient is φ = 664334610.

The previous prime is 664334597. The next prime is 664334641. The reversal of 664334611 is 116433466.

664334611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 664334611 - 2⁵ = 664334579 is a prime.

It is not a weakly prime, because it can be changed into another prime (664334641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332167305 + 332167306.

It is an arithmetic number, because the mean of its divisors is an integer number (332167306).

Almost surely, 2^664334611 is an apocalyptic number.

664334611 is a deficient number, since it is larger than the sum of its proper divisors (1).

664334611 is an equidigital number, since it uses as much as digits as its factorization.

664334611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 34.

The square root of 664334611 is about 25774.6893482734. The cubic root of 664334611 is about 872.5606555479.

The spelling of 664334611 in words is "six hundred sixty-four million, three hundred thirty-four thousand, six hundred eleven".