159816 has 16 divisors (see below), whose sum is σ = 399600. Its totient is φ = 53264.

The previous prime is 159811. The next prime is 159833. The reversal of 159816 is 618951.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (159811) by changing a digit.

159816 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3306 + ... + 3353.

It is an arithmetic number, because the mean of its divisors is an integer number (24975).

2¹⁵⁹⁸¹⁶ is an apocalyptic number.

It is an amenable number.

159816 is an abundant number, since it is smaller than the sum of its proper divisors (239784).

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

159816 is a wasteful number, since it uses less digits than its factorization.

159816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6668 (or 6664 counting only the distinct ones).

The product of its digits is 2160, while the sum is 30.

The square root of 159816 is about 399.7699338370. The cubic root of 159816 is about 54.2675338144.

The spelling of 159816 in words is "one hundred fifty-nine thousand, eight hundred sixteen".