168532419172 has 48 divisors (see below), whose sum is σ = 336363520752. Its totient is φ = 73195315200.

The previous prime is 168532419161. The next prime is 168532419173. The reversal of 168532419172 is 271914235861.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 91126116 + 168441293056 = 9546^2 + 410416^2 .

It is not an unprimeable number, because it can be changed into a prime (168532419173) 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 15 ways as a sum of consecutive naturals, for example, 6026422 + ... + 6054322.

It is an arithmetic number, because the mean of its divisors is an integer number (7007573349).

Almost surely, 2^168532419172 is an apocalyptic number.

It is an amenable number.

168532419172 is a deficient number, since it is larger than the sum of its proper divisors (167831101580).

168532419172 is a wasteful number, since it uses less digits than its factorization.

168532419172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34768 (or 34766 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The spelling of 168532419172 in words is "one hundred sixty-eight billion, five hundred thirty-two million, four hundred nineteen thousand, one hundred seventy-two".