159666485 has 8 divisors (see below), whose sum is σ = 209018016. Its totient is φ = 116121040.

The previous prime is 159666469. The next prime is 159666497. The reversal of 159666485 is 584666951.

It is a happy number.

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

It is not a de Polignac number, because 159666485 - 2⁴ = 159666469 is a prime.

It is a Duffinian number.

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, 1451459 + ... + 1451568.

It is an arithmetic number, because the mean of its divisors is an integer number (26127252).

Almost surely, 2^159666485 is an apocalyptic number.

It is an amenable number.

159666485 is a deficient number, since it is larger than the sum of its proper divisors (49351531).

159666485 is a wasteful number, since it uses less digits than its factorization.

159666485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903043.

The product of its digits is 1555200, while the sum is 50.

The square root of 159666485 is about 12635.9204255171. The cubic root of 159666485 is about 542.5060530093.

The spelling of 159666485 in words is "one hundred fifty-nine million, six hundred sixty-six thousand, four hundred eighty-five".