168003159920 has 40 divisors (see below), whose sum is σ = 394399670496. Its totient is φ = 66548821248.

The previous prime is 168003159917. The next prime is 168003159983. The reversal of 168003159920 is 29951300861.

It is a happy number.

168003159920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10186127 + ... + 10202606.

Almost surely, 2^168003159920 is an apocalyptic number.

168003159920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168003159920 is an abundant number, since it is smaller than the sum of its proper divisors (226396510576).

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

168003159920 is a wasteful number, since it uses less digits than its factorization.

168003159920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20388849 (or 20388843 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 168003159920 in words is "one hundred sixty-eight billion, three million, one hundred fifty-nine thousand, nine hundred twenty".