171881064132 has 24 divisors (see below), whose sum is σ = 404604986016. Its totient is φ = 56786663808.

The previous prime is 171881064109. The next prime is 171881064133. The reversal of 171881064132 is 231460188171.

It is not an unprimeable number, because it can be changed into a prime (171881064133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63376618 + ... + 63379329.

It is an arithmetic number, because the mean of its divisors is an integer number (16858541084).

Almost surely, 2^171881064132 is an apocalyptic number.

171881064132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

171881064132 is an abundant number, since it is smaller than the sum of its proper divisors (232723921884).

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

171881064132 is a wasteful number, since it uses less digits than its factorization.

171881064132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126756067 (or 126756065 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 171881064132 in words is "one hundred seventy-one billion, eight hundred eighty-one million, sixty-four thousand, one hundred thirty-two".