168185000240 has 40 divisors (see below), whose sum is σ = 394826553888. Its totient is φ = 66620851200.

The previous prime is 168185000213. The next prime is 168185000251. The reversal of 168185000240 is 42000581861.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 168185000240.

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 7 ways as a sum of consecutive naturals, for example, 10197161 + ... + 10213640.

Almost surely, 2^168185000240 is an apocalyptic number.

168185000240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168185000240 is an abundant number, since it is smaller than the sum of its proper divisors (226641553648).

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

168185000240 is a wasteful number, since it uses less digits than its factorization.

168185000240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20410917 (or 20410911 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The spelling of 168185000240 in words is "one hundred sixty-eight billion, one hundred eighty-five million, two hundred forty", and thus it is an aban number.