159669966 has 8 divisors (see below), whose sum is σ = 319339944. Its totient is φ = 53223320.

The previous prime is 159669959. The next prime is 159669997. The reversal of 159669966 is 669966951.

159669966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

159669966 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13305825 + ... + 13305836.

It is an arithmetic number, because the mean of its divisors is an integer number (39917493).

Almost surely, 2^159669966 is an apocalyptic number.

159669966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

159669966 is a wasteful number, since it uses less digits than its factorization.

159669966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26611666.

The product of its digits is 4723920, while the sum is 57.

The square root of 159669966 is about 12636.0581670076. The cubic root of 159669966 is about 542.5099954978.

The spelling of 159669966 in words is "one hundred fifty-nine million, six hundred sixty-nine thousand, nine hundred sixty-six".