163563201400 has 96 divisors (see below), whose sum is σ = 385815931200. Its totient is φ = 64475136000.

The previous prime is 163563201313. The next prime is 163563201401. The reversal of 163563201400 is 4102365361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163563201401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20567425 + ... + 20575375.

It is an arithmetic number, because the mean of its divisors is an integer number (4018915950).

Almost surely, 2^163563201400 is an apocalyptic number.

163563201400 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 163563201400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192907965600).

163563201400 is an abundant number, since it is smaller than the sum of its proper divisors (222252729800).

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

163563201400 is a wasteful number, since it uses less digits than its factorization.

163563201400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9449 (or 9440 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 163563201400 its reverse (4102365361), we get a palindrome (167665566761).

The spelling of 163563201400 in words is "one hundred sixty-three billion, five hundred sixty-three million, two hundred one thousand, four hundred".