163097971200 has 600 divisors, whose sum is σ = 616665120192. Its totient is φ = 42554695680.

The previous prime is 163097971189. The next prime is 163097971207. The reversal of 163097971200 is 2179790361.

163097971200 is a `hidden beast` number, since 1 + 6 + 309 + 79 + 71 + 200 = 666.

163097971200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (600).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (163097971207) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 48727927 + ... + 48731273.

Almost surely, 2^163097971200 is an apocalyptic number.

163097971200 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 163097971200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308332560096).

163097971200 is an abundant number, since it is smaller than the sum of its proper divisors (453567148992).

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

163097971200 is an equidigital number, since it uses as much as digits as its factorization.

163097971200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434 (or 3404 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The spelling of 163097971200 in words is "one hundred sixty-three billion, ninety-seven million, nine hundred seventy-one thousand, two hundred".