159973566 has 16 divisors (see below), whose sum is σ = 320112000. Its totient is φ = 53297048.

The previous prime is 159973529. The next prime is 159973613. The reversal of 159973566 is 665379951.

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, 8335 + ... + 19733.

It is an arithmetic number, because the mean of its divisors is an integer number (20007000).

Almost surely, 2^159973566 is an apocalyptic number.

159973566 is an abundant number, since it is smaller than the sum of its proper divisors (160138434).

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

159973566 is a wasteful number, since it uses less digits than its factorization.

159973566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13743.

The product of its digits is 1530900, while the sum is 51.

The square root of 159973566 is about 12648.0657019166. The cubic root of 159973566 is about 542.8536246243.

The spelling of 159973566 in words is "one hundred fifty-nine million, nine hundred seventy-three thousand, five hundred sixty-six".