663316333 has 4 divisors (see below), whose sum is σ = 686189340. Its totient is φ = 640443328.

The previous prime is 663316307. The next prime is 663316337. The reversal of 663316333 is 333613366.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 296287369 + 367028964 = 17213^2 + 19158^2 .

It is a cyclic number.

It is not a de Polignac number, because 663316333 - 2¹³ = 663308141 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 (663316337) 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 3 ways as a sum of consecutive naturals, for example, 11436460 + ... + 11436517.

It is an arithmetic number, because the mean of its divisors is an integer number (171547335).

Almost surely, 2^663316333 is an apocalyptic number.

It is an amenable number.

663316333 is a deficient number, since it is larger than the sum of its proper divisors (22873007).

663316333 is a wasteful number, since it uses less digits than its factorization.

663316333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22873006.

The product of its digits is 52488, while the sum is 34.

The square root of 663316333 is about 25754.9283244974. The cubic root of 663316333 is about 872.1146134208.

Adding to 663316333 its reverse (333613366), we get a palindrome (996929699).

The spelling of 663316333 in words is "six hundred sixty-three million, three hundred sixteen thousand, three hundred thirty-three".