665012006 has 8 divisors (see below), whose sum is σ = 1006345944. Its totient is φ = 329563360.

The previous prime is 665011999. The next prime is 665012009. The reversal of 665012006 is 600210566.

665012006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665012009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1471040 + ... + 1471491.

It is an arithmetic number, because the mean of its divisors is an integer number (125793243).

Almost surely, 2^665012006 is an apocalyptic number.

665012006 is a deficient number, since it is larger than the sum of its proper divisors (341333938).

665012006 is a wasteful number, since it uses less digits than its factorization.

665012006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942646.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 665012006 is about 25787.8267017599. The cubic root of 665012006 is about 872.8571263489.

The spelling of 665012006 in words is "six hundred sixty-five million, twelve thousand, six".