159685667 has 8 divisors (see below), whose sum is σ = 160617600. Its totient is φ = 158757184.

The previous prime is 159685657. The next prime is 159685717. The reversal of 159685667 is 766586951.

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

It is a cyclic number.

It is not a de Polignac number, because 159685667 - 2⁸ = 159685411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159685657) 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 7 ways as a sum of consecutive naturals, for example, 185903 + ... + 186759.

It is an arithmetic number, because the mean of its divisors is an integer number (20077200).

Almost surely, 2^159685667 is an apocalyptic number.

159685667 is a deficient number, since it is larger than the sum of its proper divisors (931933).

159685667 is an equidigital number, since it uses as much as digits as its factorization.

159685667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725.

The product of its digits is 2721600, while the sum is 53.

The square root of 159685667 is about 12636.6794293438. The cubic root of 159685667 is about 542.5277773229.

The spelling of 159685667 in words is "one hundred fifty-nine million, six hundred eighty-five thousand, six hundred sixty-seven".