664863027307 has 2 divisors, whose sum is σ = 664863027308. Its totient is φ = 664863027306.

The previous prime is 664863027293. The next prime is 664863027317. The reversal of 664863027307 is 703720368466.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664863027307 is a prime.

It is not a weakly prime, because it can be changed into another prime (664863027317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332431513653 + 332431513654.

It is an arithmetic number, because the mean of its divisors is an integer number (332431513654).

Almost surely, 2^664863027307 is an apocalyptic number.

664863027307 is a deficient number, since it is larger than the sum of its proper divisors (1).

664863027307 is an equidigital number, since it uses as much as digits as its factorization.

664863027307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 52.

The spelling of 664863027307 in words is "six hundred sixty-four billion, eight hundred sixty-three million, twenty-seven thousand, three hundred seven".