669257006 has 8 divisors (see below), whose sum is σ = 1095147864. Its totient is φ = 304207720.

The previous prime is 669256979. The next prime is 669257011. The reversal of 669257006 is 600752966.

669257006 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 Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15210365 + ... + 15210408.

It is an arithmetic number, because the mean of its divisors is an integer number (136893483).

Almost surely, 2^669257006 is an apocalyptic number.

669257006 is a deficient number, since it is larger than the sum of its proper divisors (425890858).

669257006 is a wasteful number, since it uses less digits than its factorization.

669257006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30420786.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 669257006 is about 25870.0020487050. The cubic root of 669257006 is about 874.7104374105.

The spelling of 669257006 in words is "six hundred sixty-nine million, two hundred fifty-seven thousand, six".