163020020 has 24 divisors (see below), whose sum is σ = 354148200. Its totient is φ = 62959232.

The previous prime is 163019971. The next prime is 163020031. The reversal of 163020020 is 20020361.

163020020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 67996516 + 95023504 = 8246^2 + 9748^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163019977 and 163020004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139955 + ... + 141114.

It is an arithmetic number, because the mean of its divisors is an integer number (14756175).

Almost surely, 2^163020020 is an apocalyptic number.

163020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163020020 is an abundant number, since it is smaller than the sum of its proper divisors (191128180).

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

163020020 is a wasteful number, since it uses less digits than its factorization.

163020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281107 (or 281105 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 163020020 is about 12767.9293544411. The cubic root of 163020020 is about 546.2779202949.

Adding to 163020020 its reverse (20020361), we get a palindrome (183040381).

The spelling of 163020020 in words is "one hundred sixty-three million, twenty thousand, twenty".