660222185713 has 2 divisors, whose sum is σ = 660222185714. Its totient is φ = 660222185712.

The previous prime is 660222185687. The next prime is 660222185719. The reversal of 660222185713 is 317581222066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 612544153104 + 47678032609 = 782652^2 + 218353^2 .

It is a cyclic number.

It is not a de Polignac number, because 660222185713 - 2⁵ = 660222185681 is a prime.

It is a super-2 number, since 2×660222185713² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 660222185713.

It is not a weakly prime, because it can be changed into another prime (660222185719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330111092856 + 330111092857.

It is an arithmetic number, because the mean of its divisors is an integer number (330111092857).

Almost surely, 2^660222185713 is an apocalyptic number.

It is an amenable number.

660222185713 is a deficient number, since it is larger than the sum of its proper divisors (1).

660222185713 is an equidigital number, since it uses as much as digits as its factorization.

660222185713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 660222185713 in words is "six hundred sixty billion, two hundred twenty-two million, one hundred eighty-five thousand, seven hundred thirteen".