159894252000 has 1152 divisors, whose sum is σ = 691765401600. Its totient is φ = 34896153600.

The previous prime is 159894251971. The next prime is 159894252017. The reversal of 159894252000 is 252498951.

It is a happy number.

159894252000 is a `hidden beast` number, since 1 + 5 + 9 + 89 + 42 + 520 + 0 + 0 = 666.

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 191 ways as a sum of consecutive naturals, for example, 284003719 + ... + 284004281.

It is an arithmetic number, because the mean of its divisors is an integer number (600490800).

Almost surely, 2^159894252000 is an apocalyptic number.

159894252000 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 159894252000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345882700800).

159894252000 is an abundant number, since it is smaller than the sum of its proper divisors (531871149600).

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

159894252000 is a wasteful number, since it uses less digits than its factorization.

159894252000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 159894252000 in words is "one hundred fifty-nine billion, eight hundred ninety-four million, two hundred fifty-two thousand".