159381328091 has 2 divisors, whose sum is σ = 159381328092. Its totient is φ = 159381328090.

The previous prime is 159381328079. The next prime is 159381328129. The reversal of 159381328091 is 190823183951.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 159381328091 - 2¹⁰ = 159381327067 is a prime.

It is not a weakly prime, because it can be changed into another prime (159381328891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79690664045 + 79690664046.

It is an arithmetic number, because the mean of its divisors is an integer number (79690664046).

Almost surely, 2^159381328091 is an apocalyptic number.

159381328091 is a deficient number, since it is larger than the sum of its proper divisors (1).

159381328091 is an equidigital number, since it uses as much as digits as its factorization.

159381328091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 159381328091 in words is "one hundred fifty-nine billion, three hundred eighty-one million, three hundred twenty-eight thousand, ninety-one".