163818018000 has 2560 divisors, whose sum is σ = 800228782080. Its totient is φ = 31054233600.

The previous prime is 163818017981. The next prime is 163818018011. The reversal of 163818018000 is 810818361.

163818018000 is a `hidden beast` number, since 1 + 638 + 1 + 8 + 0 + 18 + 0 + 0 + 0 = 666.

163818018000 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 a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 3090905974 + ... + 3090906026.

It is an arithmetic number, because the mean of its divisors is an integer number (312589368).

Almost surely, 2^163818018000 is an apocalyptic number.

163818018000 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 163818018000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400114391040).

163818018000 is an abundant number, since it is smaller than the sum of its proper divisors (636410764080).

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

163818018000 is a wasteful number, since it uses less digits than its factorization.

163818018000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The spelling of 163818018000 in words is "one hundred sixty-three billion, eight hundred eighteen million, eighteen thousand".