163020004 has 48 divisors (see below), whose sum is σ = 347155200. Its totient is φ = 65387520.

The previous prime is 163019971. The next prime is 163020031. The reversal of 163020004 is 400020361.

163020004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 163020004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93864 + ... + 95584.

It is an arithmetic number, because the mean of its divisors is an integer number (7232400).

Almost surely, 2^163020004 is an apocalyptic number.

163020004 is a gapful number since it is divisible by the number (14) 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 163020004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173577600).

163020004 is an abundant number, since it is smaller than the sum of its proper divisors (184135196).

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

163020004 is a wasteful number, since it uses less digits than its factorization.

163020004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 163020004 is about 12767.9287278713. The cubic root of 163020004 is about 546.2779024230.

Adding to 163020004 its reverse (400020361), we get a palindrome (563040365).

The spelling of 163020004 in words is "one hundred sixty-three million, twenty thousand, four".