800163720 has 288 divisors, whose sum is σ = 2824398720. Its totient is φ = 196335360.

The previous prime is 800163697. The next prime is 800163733. The reversal of 800163720 is 27361008.

800163720 is a `hidden beast` number, since 8 + 0 + 0 + 1 + 637 + 20 = 666.

800163720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6108055 + ... + 6108185.

It is an arithmetic number, because the mean of its divisors is an integer number (9806940).

Almost surely, 2^800163720 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 800163720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1412199360).

800163720 is an abundant number, since it is smaller than the sum of its proper divisors (2024235000).

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

800163720 is a wasteful number, since it uses less digits than its factorization.

800163720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 800163720 is about 28287.1652874586. The cubic root of 800163720 is about 928.3810891468.

The spelling of 800163720 in words is "eight hundred million, one hundred sixty-three thousand, seven hundred twenty".