663326303 has 2 divisors, whose sum is σ = 663326304. Its totient is φ = 663326302.

The previous prime is 663326297. The next prime is 663326329. The reversal of 663326303 is 303623366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 663326303 - 2¹² = 663322207 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 663326303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663326393) 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, 331663151 + 331663152.

It is an arithmetic number, because the mean of its divisors is an integer number (331663152).

Almost surely, 2^663326303 is an apocalyptic number.

663326303 is a deficient number, since it is larger than the sum of its proper divisors (1).

663326303 is an equidigital number, since it uses as much as digits as its factorization.

663326303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 32.

The square root of 663326303 is about 25755.1218789584. The cubic root of 663326303 is about 872.1189828489.

Adding to 663326303 its reverse (303623366), we get a palindrome (966949669).

The spelling of 663326303 in words is "six hundred sixty-three million, three hundred twenty-six thousand, three hundred three".