663985082 has 16 divisors (see below), whose sum is σ = 1055221992. Its totient is φ = 312268800.

The previous prime is 663985067. The next prime is 663985087. The reversal of 663985082 is 280589366.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 428945521 + 235039561 = 20711^2 + 15331^2 .

It is not an unprimeable number, because it can be changed into a prime (663985087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59498 + ... + 69770.

Almost surely, 2^663985082 is an apocalyptic number.

663985082 is a deficient number, since it is larger than the sum of its proper divisors (391236910).

663985082 is a wasteful number, since it uses less digits than its factorization.

663985082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12193.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 663985082 is about 25767.9079864858. The cubic root of 663985082 is about 872.4076007711.

The spelling of 663985082 in words is "six hundred sixty-three million, nine hundred eighty-five thousand, eighty-two".