6664399363 has 2 divisors, whose sum is σ = 6664399364. Its totient is φ = 6664399362.

The previous prime is 6664399327. The next prime is 6664399369. The reversal of 6664399363 is 3639934666.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6664399363 is a prime.

It is not a weakly prime, because it can be changed into another prime (6664399369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332199681 + 3332199682.

It is an arithmetic number, because the mean of its divisors is an integer number (3332199682).

Almost surely, 2^6664399363 is an apocalyptic number.

6664399363 is a deficient number, since it is larger than the sum of its proper divisors (1).

6664399363 is an equidigital number, since it uses as much as digits as its factorization.

6664399363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11337408, while the sum is 55.

The square root of 6664399363 is about 81635.7725693828. The cubic root of 6664399363 is about 1881.8586721259.

The spelling of 6664399363 in words is "six billion, six hundred sixty-four million, three hundred ninety-nine thousand, three hundred sixty-three".