663316303 has 8 divisors (see below), whose sum is σ = 714672000. Its totient is φ = 612007968.

The previous prime is 663316271. The next prime is 663316307. The reversal of 663316303 is 303613366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 663316303 - 2⁵ = 663316271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663316307) 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 in 7 ways as a sum of consecutive naturals, for example, 20553 + ... + 41821.

It is an arithmetic number, because the mean of its divisors is an integer number (89334000).

Almost surely, 2^663316303 is an apocalyptic number.

663316303 is a deficient number, since it is larger than the sum of its proper divisors (51355697).

663316303 is a wasteful number, since it uses less digits than its factorization.

663316303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23681.

The product of its (nonzero) digits is 17496, while the sum is 31.

The square root of 663316303 is about 25754.9277420846. The cubic root of 663316303 is about 872.1146002730.

Adding to 663316303 its reverse (303613366), we get a palindrome (966929669).

The spelling of 663316303 in words is "six hundred sixty-three million, three hundred sixteen thousand, three hundred three".