159236993701 has 2 divisors, whose sum is σ = 159236993702. Its totient is φ = 159236993700.

The previous prime is 159236993651. The next prime is 159236993731. The reversal of 159236993701 is 107399632951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126450648801 + 32786344900 = 355599^2 + 181070^2 .

It is a cyclic number.

It is not a de Polignac number, because 159236993701 - 2⁹ = 159236993189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159236993731) 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, 79618496850 + 79618496851.

It is an arithmetic number, because the mean of its divisors is an integer number (79618496851).

Almost surely, 2^159236993701 is an apocalyptic number.

It is an amenable number.

159236993701 is a deficient number, since it is larger than the sum of its proper divisors (1).

159236993701 is an equidigital number, since it uses as much as digits as its factorization.

159236993701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2755620, while the sum is 55.

The spelling of 159236993701 in words is "one hundred fifty-nine billion, two hundred thirty-six million, nine hundred ninety-three thousand, seven hundred one".