6660317959 has 4 divisors (see below), whose sum is σ = 6661008000. Its totient is φ = 6659627920.

The previous prime is 6660317957. The next prime is 6660317999. The reversal of 6660317959 is 9597130666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6660317959 - 2¹ = 6660317957 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660317957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330334 + ... + 349915.

It is an arithmetic number, because the mean of its divisors is an integer number (1665252000).

Almost surely, 2^6660317959 is an apocalyptic number.

6660317959 is a deficient number, since it is larger than the sum of its proper divisors (690041).

6660317959 is an equidigital number, since it uses as much as digits as its factorization.

6660317959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690040.

The product of its (nonzero) digits is 1837080, while the sum is 52.

The square root of 6660317959 is about 81610.7710967125. The cubic root of 6660317959 is about 1881.4744317491.

The spelling of 6660317959 in words is "six billion, six hundred sixty million, three hundred seventeen thousand, nine hundred fifty-nine".