660332207 has 8 divisors (see below), whose sum is σ = 707032800. Its totient is φ = 614504704.

The previous prime is 660332201. The next prime is 660332219. The reversal of 660332207 is 702233066.

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 660332207 - 2⁶ = 660332143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 660332207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660332201) 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, 216707 + ... + 219732.

It is an arithmetic number, because the mean of its divisors is an integer number (88379100).

Almost surely, 2^660332207 is an apocalyptic number.

660332207 is a deficient number, since it is larger than the sum of its proper divisors (46700593).

660332207 is a wasteful number, since it uses less digits than its factorization.

660332207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436545.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 660332207 is about 25696.9299139022. The cubic root of 660332207 is about 870.8048248862.

The spelling of 660332207 in words is "six hundred sixty million, three hundred thirty-two thousand, two hundred seven".