665245006 has 8 divisors (see below), whose sum is σ = 998184024. Its totient is φ = 332517000.

The previous prime is 665244989. The next prime is 665245013. The reversal of 665245006 is 600542566.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 44620 + ... + 57631.

It is an arithmetic number, because the mean of its divisors is an integer number (124773003).

Almost surely, 2^665245006 is an apocalyptic number.

665245006 is a deficient number, since it is larger than the sum of its proper divisors (332939018).

665245006 is a wasteful number, since it uses less digits than its factorization.

665245006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105506.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 665245006 is about 25792.3439415653. The cubic root of 665245006 is about 872.9590553171.

The spelling of 665245006 in words is "six hundred sixty-five million, two hundred forty-five thousand, six".