663633000331 has 24 divisors (see below), whose sum is σ = 820989390480. Its totient is φ = 533334316032.

The previous prime is 663633000263. The next prime is 663633000341. The reversal of 663633000331 is 133000336366.

It is not a de Polignac number, because 663633000331 - 2¹⁵ = 663632967563 is a prime.

It is a super-2 number, since 2×663633000331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (663633000341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3584010 + ... + 3764623.

It is an arithmetic number, because the mean of its divisors is an integer number (34207891270).

Almost surely, 2^663633000331 is an apocalyptic number.

663633000331 is a deficient number, since it is larger than the sum of its proper divisors (157356390149).

663633000331 is a wasteful number, since it uses less digits than its factorization.

663633000331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7348763 (or 7348756 counting only the distinct ones).

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

Adding to 663633000331 its reverse (133000336366), we get a palindrome (796633336697).

The spelling of 663633000331 in words is "six hundred sixty-three billion, six hundred thirty-three million, three hundred thirty-one", and thus it is an aban number.