659589435997 has 2 divisors, whose sum is σ = 659589435998. Its totient is φ = 659589435996.

The previous prime is 659589435971. The next prime is 659589436007. The reversal of 659589435997 is 799534985956.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 525442315876 + 134147120121 = 724874^2 + 366261^2 .

It is a cyclic number.

It is not a de Polignac number, because 659589435997 - 2¹¹ = 659589433949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (659589435697) 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, 329794717998 + 329794717999.

It is an arithmetic number, because the mean of its divisors is an integer number (329794717999).

Almost surely, 2^659589435997 is an apocalyptic number.

It is an amenable number.

659589435997 is a deficient number, since it is larger than the sum of its proper divisors (1).

659589435997 is an equidigital number, since it uses as much as digits as its factorization.

659589435997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3306744000, while the sum is 79.

The spelling of 659589435997 in words is "six hundred fifty-nine billion, five hundred eighty-nine million, four hundred thirty-five thousand, nine hundred ninety-seven".