660713009 has 8 divisors (see below), whose sum is σ = 725964960. Its totient is φ = 596325600.

The previous prime is 660712993. The next prime is 660713029. The reversal of 660713009 is 900317066.

660713009 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 cyclic number.

It is not a de Polignac number, because 660713009 - 2⁴ = 660712993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660713029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214532 + ... + 217589.

It is an arithmetic number, because the mean of its divisors is an integer number (90745620).

Almost surely, 2^660713009 is an apocalyptic number.

It is an amenable number.

660713009 is a deficient number, since it is larger than the sum of its proper divisors (65251951).

660713009 is a wasteful number, since it uses less digits than its factorization.

660713009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432271.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 660713009 is about 25704.3383303286. The cubic root of 660713009 is about 870.9721853413.

The spelling of 660713009 in words is "six hundred sixty million, seven hundred thirteen thousand, nine".