159566 has 8 divisors (see below), whose sum is σ = 261144. Its totient is φ = 72520.

The previous prime is 159563. The next prime is 159569. The reversal of 159566 is 665951.

It is an interprime number because it is at equal distance from previous prime (159563) and next prime (159569).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×159566² = 50922616712, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159563) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3605 + ... + 3648.

It is an arithmetic number, because the mean of its divisors is an integer number (32643).

2¹⁵⁹⁵⁶⁶ is an apocalyptic number.

159566 is a deficient number, since it is larger than the sum of its proper divisors (101578).

159566 is a wasteful number, since it uses less digits than its factorization.

159566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7266.

The product of its digits is 8100, while the sum is 32.

The square root of 159566 is about 399.4571316174. The cubic root of 159566 is about 54.2392221647.

It can be divided in two parts, 1595 and 66, that added together give a palindrome (1661).

The spelling of 159566 in words is "one hundred fifty-nine thousand, five hundred sixty-six".