168143061984 has 96 divisors (see below), whose sum is σ = 469295285760. Its totient is φ = 52529928192.

The previous prime is 168143061949. The next prime is 168143062037. The reversal of 168143061984 is 489160341861.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

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, 174507 + ... + 605589.

It is an arithmetic number, because the mean of its divisors is an integer number (4888492560).

Almost surely, 2^168143061984 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 168143061984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234647642880).

168143061984 is an abundant number, since it is smaller than the sum of its proper divisors (301152223776).

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

168143061984 is a wasteful number, since it uses less digits than its factorization.

168143061984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431352 (or 431344 counting only the distinct ones).

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

The spelling of 168143061984 in words is "one hundred sixty-eight billion, one hundred forty-three million, sixty-one thousand, nine hundred eighty-four".