128050171161 has 8 divisors (see below), whose sum is σ = 186254794464. Its totient is φ = 77606164320.

The previous prime is 128050171159. The next prime is 128050171163. The reversal of 128050171161 is 161171050821.

It is an interprime number because it is at equal distance from previous prime (128050171159) and next prime (128050171163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128050171161 - 2¹ = 128050171159 is a prime.

It is a super-2 number, since 2×128050171161² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3880308217 = 128050171161 / (1 + 2 + 8 + 0 + 5 + 0 + 1 + 7 + 1 + 1 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (128050171163) 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 7 ways as a sum of consecutive naturals, for example, 1940154076 + ... + 1940154141.

It is an arithmetic number, because the mean of its divisors is an integer number (23281849308).

Almost surely, 2^128050171161 is an apocalyptic number.

128050171161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

128050171161 is a deficient number, since it is larger than the sum of its proper divisors (58204623303).

128050171161 is a wasteful number, since it uses less digits than its factorization.

128050171161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880308231.

The product of its (nonzero) digits is 3360, while the sum is 33.

The spelling of 128050171161 in words is "one hundred twenty-eight billion, fifty million, one hundred seventy-one thousand, one hundred sixty-one".