163875820 has 12 divisors (see below), whose sum is σ = 344139264. Its totient is φ = 65550320.

The previous prime is 163875809. The next prime is 163875871. The reversal of 163875820 is 28578361.

163875820 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 3 ways as a sum of consecutive naturals, for example, 4096876 + ... + 4096915.

It is an arithmetic number, because the mean of its divisors is an integer number (28678272).

Almost surely, 2^163875820 is an apocalyptic number.

163875820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163875820 is an abundant number, since it is smaller than the sum of its proper divisors (180263444).

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

163875820 is a wasteful number, since it uses less digits than its factorization.

163875820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8193800 (or 8193798 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 163875820 is about 12801.3991422813. The cubic root of 163875820 is about 547.2321772043.

The spelling of 163875820 in words is "one hundred sixty-three million, eight hundred seventy-five thousand, eight hundred twenty".