159221332800 has 336 divisors, whose sum is σ = 583368912000. Its totient is φ = 42243379200.

The previous prime is 159221332747. The next prime is 159221332817. The reversal of 159221332800 is 8233122951.

159221332800 is a `hidden beast` number, since 159 + 221 + 3 + 3 + 280 + 0 = 666.

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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8587540 + ... + 8606060.

It is an arithmetic number, because the mean of its divisors is an integer number (1736217000).

Almost surely, 2^159221332800 is an apocalyptic number.

159221332800 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 159221332800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291684456000).

159221332800 is an abundant number, since it is smaller than the sum of its proper divisors (424147579200).

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

159221332800 is a wasteful number, since it uses less digits than its factorization.

159221332800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18751 (or 18730 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 159221332800 in words is "one hundred fifty-nine billion, two hundred twenty-one million, three hundred thirty-two thousand, eight hundred".