163236326400 has 1188 divisors, whose sum is σ = 716609747880. Its totient is φ = 35300966400.

The previous prime is 163236326359. The next prime is 163236326431. The reversal of 163236326400 is 4623632361.

163236326400 is a `hidden beast` number, since 1 + 6 + 3 + 2 + 3 + 6 + 3 + 2 + 640 + 0 = 666.

163236326400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 107 ways as a sum of consecutive naturals, for example, 214502020 + ... + 214502780.

Almost surely, 2^163236326400 is an apocalyptic number.

163236326400 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 163236326400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358304873940).

163236326400 is an abundant number, since it is smaller than the sum of its proper divisors (553373421480).

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

163236326400 is a wasteful number, since it uses less digits than its factorization.

163236326400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

Adding to 163236326400 its reverse (4623632361), we get a palindrome (167859958761).

The spelling of 163236326400 in words is "one hundred sixty-three billion, two hundred thirty-six million, three hundred twenty-six thousand, four hundred".