159660 has 36 divisors (see below), whose sum is σ = 484848. Its totient is φ = 42528.

The previous prime is 159631. The next prime is 159667. The reversal of 159660 is 66951.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (159667) by changing a digit.

159660 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264 + ... + 623.

It is an arithmetic number, because the mean of its divisors is an integer number (13468).

2¹⁵⁹⁶⁶⁰ is an apocalyptic number.

159660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159660 is an abundant number, since it is smaller than the sum of its proper divisors (325188).

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

159660 is a wasteful number, since it uses less digits than its factorization.

159660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 159660 is about 399.5747739785. The cubic root of 159660 is about 54.2498708117.

The spelling of 159660 in words is "one hundred fifty-nine thousand, six hundred sixty".