663132337 has 6 divisors (see below), whose sum is σ = 771398898. Its totient is φ = 568399104.

The previous prime is 663132317. The next prime is 663132341. The reversal of 663132337 is 733231366.

It can be written as a sum of positive squares in only one way, i.e., 660695616 + 2436721 = 25704^2 + 1561^2 .

It is a de Polignac number, because none of the positive numbers 2^k-663132337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663132307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6766608 + ... + 6766705.

It is an arithmetic number, because the mean of its divisors is an integer number (128566483).

Almost surely, 2^663132337 is an apocalyptic number.

It is an amenable number.

663132337 is a deficient number, since it is larger than the sum of its proper divisors (108266561).

663132337 is a wasteful number, since it uses less digits than its factorization.

663132337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13533327 (or 13533320 counting only the distinct ones).

The product of its digits is 40824, while the sum is 34.

The square root of 663132337 is about 25751.3560225476. The cubic root of 663132337 is about 872.0339679169.

The spelling of 663132337 in words is "six hundred sixty-three million, one hundred thirty-two thousand, three hundred thirty-seven".