168783885720 has 96 divisors (see below), whose sum is σ = 548641782000. Its totient is φ = 45001310976.

The previous prime is 168783885713. The next prime is 168783885763. The reversal of 168783885720 is 27588387861.

168783885720 is a `hidden beast` number, since 168 + 78 + 388 + 5 + 7 + 20 = 666.

168783885720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 2239206 + ... + 2313354.

Almost surely, 2^168783885720 is an apocalyptic number.

168783885720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168783885720 is an abundant number, since it is smaller than the sum of its proper divisors (379857896280).

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

168783885720 is a wasteful number, since it uses less digits than its factorization.

168783885720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80489 (or 80482 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 63.

The spelling of 168783885720 in words is "one hundred sixty-eight billion, seven hundred eighty-three million, eight hundred eighty-five thousand, seven hundred twenty".