663800132 has 6 divisors (see below), whose sum is σ = 1161650238. Its totient is φ = 331900064.

The previous prime is 663800119. The next prime is 663800141. The reversal of 663800132 is 231008366.

It can be written as a sum of positive squares in only one way, i.e., 588353536 + 75446596 = 24256^2 + 8686^2 .

It is a junction number, because it is equal to n+sod(n) for n = 663800095 and 663800104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82975013 + ... + 82975020.

It is an arithmetic number, because the mean of its divisors is an integer number (193608373).

Almost surely, 2^663800132 is an apocalyptic number.

It is an amenable number.

663800132 is a deficient number, since it is larger than the sum of its proper divisors (497850106).

663800132 is a wasteful number, since it uses less digits than its factorization.

663800132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165950037 (or 165950035 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 663800132 is about 25764.3189702348. The cubic root of 663800132 is about 872.3265915368.

Adding to 663800132 its reverse (231008366), we get a palindrome (894808498).

The spelling of 663800132 in words is "six hundred sixty-three million, eight hundred thousand, one hundred thirty-two".