663359009 has 2 divisors, whose sum is σ = 663359010. Its totient is φ = 663359008.

The previous prime is 663359003. The next prime is 663359063. The reversal of 663359009 is 900953366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 555780625 + 107578384 = 23575^2 + 10372^2 .

It is a cyclic number.

It is not a de Polignac number, because 663359009 - 2⁸ = 663358753 is a prime.

It is not a weakly prime, because it can be changed into another prime (663359003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331679504 + 331679505.

It is an arithmetic number, because the mean of its divisors is an integer number (331679505).

Almost surely, 2^663359009 is an apocalyptic number.

It is an amenable number.

663359009 is a deficient number, since it is larger than the sum of its proper divisors (1).

663359009 is an equidigital number, since it uses as much as digits as its factorization.

663359009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131220, while the sum is 41.

The square root of 663359009 is about 25755.7568127982. The cubic root of 663359009 is about 872.1333161942.

The spelling of 663359009 in words is "six hundred sixty-three million, three hundred fifty-nine thousand, nine".