660500713 has 2 divisors, whose sum is σ = 660500714. Its totient is φ = 660500712.

The previous prime is 660500699. The next prime is 660500719. The reversal of 660500713 is 317005066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 532086489 + 128414224 = 23067^2 + 11332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660500713 is a prime.

It is a super-2 number, since 2×660500713² = 872522383747016738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (660500719) 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 as a sum of consecutive naturals, namely, 330250356 + 330250357.

It is an arithmetic number, because the mean of its divisors is an integer number (330250357).

Almost surely, 2^660500713 is an apocalyptic number.

It is an amenable number.

660500713 is a deficient number, since it is larger than the sum of its proper divisors (1).

660500713 is an equidigital number, since it uses as much as digits as its factorization.

660500713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 660500713 is about 25700.2084232794. The cubic root of 660500713 is about 870.8788903120.

Adding to 660500713 its reverse (317005066), we get a palindrome (977505779).

The spelling of 660500713 in words is "six hundred sixty million, five hundred thousand, seven hundred thirteen".