663781132 has 12 divisors (see below), whose sum is σ = 1327562320. Its totient is φ = 284477616.

The previous prime is 663781123. The next prime is 663781163. The reversal of 663781132 is 231187366.

663781132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

663781132 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 663781091 and 663781100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11853207 + ... + 11853262.

Almost surely, 2^663781132 is an apocalyptic number.

It is an amenable number.

663781132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

663781132 is a wasteful number, since it uses less digits than its factorization.

663781132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23706480 (or 23706478 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 663781132 is about 25763.9502405978. The cubic root of 663781132 is about 872.3182685680.

The spelling of 663781132 in words is "six hundred sixty-three million, seven hundred eighty-one thousand, one hundred thirty-two".