663631302 has 32 divisors (see below), whose sum is σ = 1374439680. Its totient is φ = 213363360.

The previous prime is 663631301. The next prime is 663631333. The reversal of 663631302 is 203136366.

It is a self number, because there is not a number n which added to its sum of digits gives 663631302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663631301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317553 + ... + 319635.

It is an arithmetic number, because the mean of its divisors is an integer number (42951240).

Almost surely, 2^663631302 is an apocalyptic number.

663631302 is an abundant number, since it is smaller than the sum of its proper divisors (710808378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663631302 is a wasteful number, since it uses less digits than its factorization.

663631302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3948.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 663631302 is about 25761.0423313965. The cubic root of 663631302 is about 872.2526298230.

Adding to 663631302 its reverse (203136366), we get a palindrome (866767668).

The spelling of 663631302 in words is "six hundred sixty-three million, six hundred thirty-one thousand, three hundred two".