660560296211 has 2 divisors, whose sum is σ = 660560296212. Its totient is φ = 660560296210.

The previous prime is 660560296117. The next prime is 660560296247. The reversal of 660560296211 is 112692065066.

660560296211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660560296211 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (660560296261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330280148105 + 330280148106.

It is an arithmetic number, because the mean of its divisors is an integer number (330280148106).

Almost surely, 2^660560296211 is an apocalyptic number.

660560296211 is a deficient number, since it is larger than the sum of its proper divisors (1).

660560296211 is an equidigital number, since it uses as much as digits as its factorization.

660560296211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 660560296211 in words is "six hundred sixty billion, five hundred sixty million, two hundred ninety-six thousand, two hundred eleven".