128159324171 has 4 divisors (see below), whose sum is σ = 128165787144. Its totient is φ = 128152861200.

The previous prime is 128159324119. The next prime is 128159324173. The reversal of 128159324171 is 171423951821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128159324171 - 2³⁴ = 110979454987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128159324173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3201650 + ... + 3241431.

It is an arithmetic number, because the mean of its divisors is an integer number (32041446786).

Almost surely, 2^128159324171 is an apocalyptic number.

128159324171 is a deficient number, since it is larger than the sum of its proper divisors (6462973).

128159324171 is an equidigital number, since it uses as much as digits as its factorization.

128159324171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6462972.

The product of its digits is 120960, while the sum is 44.

The spelling of 128159324171 in words is "one hundred twenty-eight billion, one hundred fifty-nine million, three hundred twenty-four thousand, one hundred seventy-one".