159533971200 has 648 divisors, whose sum is σ = 622741392000. Its totient is φ = 40295854080.

The previous prime is 159533971193. The next prime is 159533971231. The reversal of 159533971200 is 2179335951.

159533971200 is a `hidden beast` number, since 1 + 5 + 9 + 53 + 397 + 1 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (648).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 29546101 + ... + 29551499.

Almost surely, 2^159533971200 is an apocalyptic number.

159533971200 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 159533971200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311370696000).

159533971200 is an abundant number, since it is smaller than the sum of its proper divisors (463207420800).

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

159533971200 is an equidigital number, since it uses as much as digits as its factorization.

159533971200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459 (or 5428 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 45.

The spelling of 159533971200 in words is "one hundred fifty-nine billion, five hundred thirty-three million, nine hundred seventy-one thousand, two hundred".