159841640 has 64 divisors (see below), whose sum is σ = 418815360. Its totient is φ = 53763840.

The previous prime is 159841639. The next prime is 159841681. The reversal of 159841640 is 46148951.

159841640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 159841594 and 159841603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9455 + ... + 20225.

It is an arithmetic number, because the mean of its divisors is an integer number (6543990).

Almost surely, 2^159841640 is an apocalyptic number.

159841640 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 159841640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209407680).

159841640 is an abundant number, since it is smaller than the sum of its proper divisors (258973720).

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

159841640 is a wasteful number, since it uses less digits than its factorization.

159841640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10842 (or 10838 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 159841640 is about 12642.8493623866. The cubic root of 159841640 is about 542.7043578739.

The spelling of 159841640 in words is "one hundred fifty-nine million, eight hundred forty-one thousand, six hundred forty".