660560296117 has 2 divisors, whose sum is σ = 660560296118. Its totient is φ = 660560296116.

The previous prime is 660560296073. The next prime is 660560296211. The reversal of 660560296117 is 711692065066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 625152723556 + 35407572561 = 790666^2 + 188169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660560296117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660560296717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330280148058 + 330280148059.

It is an arithmetic number, because the mean of its divisors is an integer number (330280148059).

Almost surely, 2^660560296117 is an apocalyptic number.

It is an amenable number.

660560296117 is a deficient number, since it is larger than the sum of its proper divisors (1).

660560296117 is an equidigital number, since it uses as much as digits as its factorization.

660560296117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 660560296117 in words is "six hundred sixty billion, five hundred sixty million, two hundred ninety-six thousand, one hundred seventeen".