159660566 has 16 divisors (see below), whose sum is σ = 273085344. Its totient is φ = 69354624.

The previous prime is 159660541. The next prime is 159660581. The reversal of 159660566 is 665066951.

It is a Curzon number.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 180170 + ... + 181053.

It is an arithmetic number, because the mean of its divisors is an integer number (17067834).

Almost surely, 2^159660566 is an apocalyptic number.

159660566 is a deficient number, since it is larger than the sum of its proper divisors (113424778).

159660566 is a wasteful number, since it uses less digits than its factorization.

159660566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361255.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 159660566 is about 12635.6862100956. The cubic root of 159660566 is about 542.4993491749.

The spelling of 159660566 in words is "one hundred fifty-nine million, six hundred sixty thousand, five hundred sixty-six".