159621936190111 has 2 divisors, whose sum is σ = 159621936190112. Its totient is φ = 159621936190110.

The previous prime is 159621936190043. The next prime is 159621936190169. The reversal of 159621936190111 is 111091639126951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159621936190111 - 2¹⁹ = 159621935665823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159621936100111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79810968095055 + 79810968095056.

It is an arithmetic number, because the mean of its divisors is an integer number (79810968095056).

Almost surely, 2^{159621936190111} is an apocalyptic number.

159621936190111 is a deficient number, since it is larger than the sum of its proper divisors (1).

159621936190111 is an equidigital number, since it uses as much as digits as its factorization.

159621936190111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787320, while the sum is 55.

The spelling of 159621936190111 in words is "one hundred fifty-nine trillion, six hundred twenty-one billion, nine hundred thirty-six million, one hundred ninety thousand, one hundred eleven".