664113323 has 2 divisors, whose sum is σ = 664113324. Its totient is φ = 664113322.

The previous prime is 664113319. The next prime is 664113349. The reversal of 664113323 is 323311466.

664113323 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 664113323 - 2² = 664113319 is a prime.

It is a super-2 number, since 2×664113323² = 882093011572204658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (664113383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332056661 + 332056662.

It is an arithmetic number, because the mean of its divisors is an integer number (332056662).

Almost surely, 2^664113323 is an apocalyptic number.

664113323 is a deficient number, since it is larger than the sum of its proper divisors (1).

664113323 is an equidigital number, since it uses as much as digits as its factorization.

664113323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 664113323 is about 25770.3962522892. The cubic root of 664113323 is about 872.4637622845.

Adding to 664113323 its reverse (323311466), we get a palindrome (987424789).

The spelling of 664113323 in words is "six hundred sixty-four million, one hundred thirteen thousand, three hundred twenty-three".