659912035243 has 2 divisors, whose sum is σ = 659912035244. Its totient is φ = 659912035242.

The previous prime is 659912035219. The next prime is 659912035253. The reversal of 659912035243 is 342530219956.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-659912035243 is a prime.

It is not a weakly prime, because it can be changed into another prime (659912035253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329956017621 + 329956017622.

It is an arithmetic number, because the mean of its divisors is an integer number (329956017622).

Almost surely, 2^659912035243 is an apocalyptic number.

659912035243 is a deficient number, since it is larger than the sum of its proper divisors (1).

659912035243 is an equidigital number, since it uses as much as digits as its factorization.

659912035243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1749600, while the sum is 49.

The spelling of 659912035243 in words is "six hundred fifty-nine billion, nine hundred twelve million, thirty-five thousand, two hundred forty-three".