171161143832 has 96 divisors (see below), whose sum is σ = 393484748400. Its totient is φ = 69488729856.

The previous prime is 171161143823. The next prime is 171161143847. The reversal of 171161143832 is 238341161171.

It is a happy number.

It is a super-2 number, since 2×171161143832² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 460463 + ... + 744545.

Almost surely, 2^171161143832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171161143832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196742374200).

171161143832 is an abundant number, since it is smaller than the sum of its proper divisors (222323604568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171161143832 is a wasteful number, since it uses less digits than its factorization.

171161143832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284185 (or 284174 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The spelling of 171161143832 in words is "one hundred seventy-one billion, one hundred sixty-one million, one hundred forty-three thousand, eight hundred thirty-two".