663516011 has 2 divisors, whose sum is σ = 663516012. Its totient is φ = 663516010.

The previous prime is 663515989. The next prime is 663516019. The reversal of 663516011 is 110615366.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-663516011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (663516019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331758005 + 331758006.

It is an arithmetic number, because the mean of its divisors is an integer number (331758006).

Almost surely, 2^663516011 is an apocalyptic number.

663516011 is a deficient number, since it is larger than the sum of its proper divisors (1).

663516011 is an equidigital number, since it uses as much as digits as its factorization.

663516011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 663516011 is about 25758.8045335959. The cubic root of 663516011 is about 872.2021154778.

The spelling of 663516011 in words is "six hundred sixty-three million, five hundred sixteen thousand, eleven".