665286332 has 24 divisors (see below), whose sum is σ = 1207074960. Its totient is φ = 320458880.

The previous prime is 665286329. The next prime is 665286337. The reversal of 665286332 is 233682566.

It is a self number, because there is not a number n which added to its sum of digits gives 665286332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665286337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48032 + ... + 60312.

It is an arithmetic number, because the mean of its divisors is an integer number (50294790).

Almost surely, 2^665286332 is an apocalyptic number.

It is an amenable number.

665286332 is a deficient number, since it is larger than the sum of its proper divisors (541788628).

665286332 is a wasteful number, since it uses less digits than its factorization.

665286332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12781 (or 12779 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 665286332 is about 25793.1450583290. The cubic root of 665286332 is about 872.9771314438.

The spelling of 665286332 in words is "six hundred sixty-five million, two hundred eighty-six thousand, three hundred thirty-two".