6663822317 has 2 divisors, whose sum is σ = 6663822318. Its totient is φ = 6663822316.

The previous prime is 6663822313. The next prime is 6663822323. The reversal of 6663822317 is 7132283666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5451459556 + 1212362761 = 73834^2 + 34819^2 .

It is a cyclic number.

It is not a de Polignac number, because 6663822317 - 2² = 6663822313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6663822313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3331911158 + 3331911159.

It is an arithmetic number, because the mean of its divisors is an integer number (3331911159).

Almost surely, 2^6663822317 is an apocalyptic number.

It is an amenable number.

6663822317 is a deficient number, since it is larger than the sum of its proper divisors (1).

6663822317 is an equidigital number, since it uses as much as digits as its factorization.

6663822317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 44.

The square root of 6663822317 is about 81632.2382211832. The cubic root of 6663822317 is about 1881.8043561351.

The spelling of 6663822317 in words is "six billion, six hundred sixty-three million, eight hundred twenty-two thousand, three hundred seventeen".