159916685 has 16 divisors (see below), whose sum is σ = 195737472. Its totient is φ = 125390400.

The previous prime is 159916661. The next prime is 159916697. The reversal of 159916685 is 586619951.

It is not a de Polignac number, because 159916685 - 2⁶ = 159916621 is a prime.

It is a super-2 number, since 2×159916685² = 51146692282778450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105080 + ... + 106590.

It is an arithmetic number, because the mean of its divisors is an integer number (12233592).

Almost surely, 2^159916685 is an apocalyptic number.

It is an amenable number.

159916685 is a deficient number, since it is larger than the sum of its proper divisors (35820787).

159916685 is a wasteful number, since it uses less digits than its factorization.

159916685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924.

The product of its digits is 583200, while the sum is 50.

The square root of 159916685 is about 12645.8168972985. The cubic root of 159916685 is about 542.7892770819.

The spelling of 159916685 in words is "one hundred fifty-nine million, nine hundred sixteen thousand, six hundred eighty-five".