168443610189 has 16 divisors (see below), whose sum is σ = 224779361664. Its totient is φ = 112201848000.

The previous prime is 168443610151. The next prime is 168443610241. The reversal of 168443610189 is 981016344861.

It is not a de Polignac number, because 168443610189 - 2⁸ = 168443609933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168443610109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34019664 + ... + 34024614.

It is an arithmetic number, because the mean of its divisors is an integer number (14048710104).

Almost surely, 2^168443610189 is an apocalyptic number.

It is an amenable number.

168443610189 is a deficient number, since it is larger than the sum of its proper divisors (56335751475).

168443610189 is a wasteful number, since it uses less digits than its factorization.

168443610189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12148.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 168443610189 in words is "one hundred sixty-eight billion, four hundred forty-three million, six hundred ten thousand, one hundred eighty-nine".