163020880 has 80 divisors (see below), whose sum is σ = 417169728. Its totient is φ = 59241600.

The previous prime is 163020877. The next prime is 163020889. The reversal of 163020880 is 88020361.

163020880 is digitally balanced in base 3, 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 (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163020889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105715 + ... + 107245.

Almost surely, 2^163020880 is an apocalyptic number.

163020880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163020880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208584864).

163020880 is an abundant number, since it is smaller than the sum of its proper divisors (254148848).

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

163020880 is a wasteful number, since it uses less digits than its factorization.

163020880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 163020880 is about 12767.9630325279. The cubic root of 163020880 is about 546.2788809094.

The spelling of 163020880 in words is "one hundred sixty-three million, twenty thousand, eight hundred eighty".