660546313 has 20 divisors (see below), whose sum is σ = 778364288. Its totient is φ = 560475720.

The previous prime is 660546307. The next prime is 660546317. The reversal of 660546313 is 313645066.

660546313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 660546313 - 2⁵ = 660546281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660546317) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 245968 + ... + 248638.

Almost surely, 2^660546313 is an apocalyptic number.

It is an amenable number.

660546313 is a deficient number, since it is larger than the sum of its proper divisors (117817975).

660546313 is an equidigital number, since it uses as much as digits as its factorization.

660546313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802 (or 2781 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 660546313 is about 25701.0955603064. The cubic root of 660546313 is about 870.8989312510.

The spelling of 660546313 in words is "six hundred sixty million, five hundred forty-six thousand, three hundred thirteen".