659693776873 has 2 divisors, whose sum is σ = 659693776874. Its totient is φ = 659693776872.

The previous prime is 659693776849. The next prime is 659693776897. The reversal of 659693776873 is 378677396956.

659693776873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (659693776849) and next prime (659693776897).

It can be written as a sum of positive squares in only one way, i.e., 535161013209 + 124532763664 = 731547^2 + 352892^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-659693776873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 659693776873.

It is not a weakly prime, because it can be changed into another prime (659693776813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329846888436 + 329846888437.

It is an arithmetic number, because the mean of its divisors is an integer number (329846888437).

Almost surely, 2^659693776873 is an apocalyptic number.

It is an amenable number.

659693776873 is a deficient number, since it is larger than the sum of its proper divisors (1).

659693776873 is an equidigital number, since it uses as much as digits as its factorization.

659693776873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160406080, while the sum is 76.

The spelling of 659693776873 in words is "six hundred fifty-nine billion, six hundred ninety-three million, seven hundred seventy-six thousand, eight hundred seventy-three".