171984161932 has 48 divisors (see below), whose sum is σ = 335540620800. Its totient is φ = 76476778560.

The previous prime is 171984161929. The next prime is 171984161977. The reversal of 171984161932 is 239161489171.

It is a self number, because there is not a number n which added to its sum of digits gives 171984161932.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151923 + ... + 605845.

It is an arithmetic number, because the mean of its divisors is an integer number (6990429600).

Almost surely, 2^171984161932 is an apocalyptic number.

It is an amenable number.

171984161932 is a deficient number, since it is larger than the sum of its proper divisors (163556458868).

171984161932 is a wasteful number, since it uses less digits than its factorization.

171984161932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454126 (or 454124 counting only the distinct ones).

The product of its digits is 653184, while the sum is 52.

The spelling of 171984161932 in words is "one hundred seventy-one billion, nine hundred eighty-four million, one hundred sixty-one thousand, nine hundred thirty-two".