163813812300 has 54 divisors (see below), whose sum is σ = 513465296708. Its totient is φ = 43683683040.

The previous prime is 163813812293. The next prime is 163813812367. The reversal of 163813812300 is 3218318361.

163813812300 is a `hidden beast` number, since 1 + 638 + 1 + 3 + 8 + 12 + 3 + 0 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 91006774 + ... + 91008573.

Almost surely, 2^163813812300 is an apocalyptic number.

163813812300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163813812300 is an abundant number, since it is smaller than the sum of its proper divisors (349651484408).

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

163813812300 is a wasteful number, since it uses less digits than its factorization.

163813812300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182015367 (or 182015357 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 163813812300 in words is "one hundred sixty-three billion, eight hundred thirteen million, eight hundred twelve thousand, three hundred".