665248982 has 4 divisors (see below), whose sum is σ = 997873476. Its totient is φ = 332624490.

The previous prime is 665248979. The next prime is 665248999. The reversal of 665248982 is 289842566.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 665248982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166312244 + ... + 166312247.

It is an arithmetic number, because the mean of its divisors is an integer number (249468369).

Almost surely, 2^665248982 is an apocalyptic number.

665248982 is a deficient number, since it is larger than the sum of its proper divisors (332624494).

665248982 is a wasteful number, since it uses less digits than its factorization.

665248982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332624493.

The product of its digits is 1658880, while the sum is 50.

The square root of 665248982 is about 25792.4210185861. The cubic root of 665248982 is about 872.9607944650.

The spelling of 665248982 in words is "six hundred sixty-five million, two hundred forty-eight thousand, nine hundred eighty-two".