159013491091 has 32 divisors (see below), whose sum is σ = 197356371968. Its totient is φ = 124754878080.

The previous prime is 159013491059. The next prime is 159013491121. The reversal of 159013491091 is 190194310951.

It is not a de Polignac number, because 159013491091 - 2⁵ = 159013491059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159013491011) 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 in 31 ways as a sum of consecutive naturals, for example, 41268121 + ... + 41271973.

It is an arithmetic number, because the mean of its divisors is an integer number (6167386624).

Almost surely, 2^159013491091 is an apocalyptic number.

159013491091 is a deficient number, since it is larger than the sum of its proper divisors (38342880877).

159013491091 is a wasteful number, since it uses less digits than its factorization.

159013491091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7571.

The product of its (nonzero) digits is 43740, while the sum is 43.

The spelling of 159013491091 in words is "one hundred fifty-nine billion, thirteen million, four hundred ninety-one thousand, ninety-one".