159813816 has 16 divisors (see below), whose sum is σ = 399534600. Its totient is φ = 53271264.

The previous prime is 159813749. The next prime is 159813847. The reversal of 159813816 is 618318951.

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 3 ways as a sum of consecutive naturals, for example, 3329431 + ... + 3329478.

Almost surely, 2^159813816 is an apocalyptic number.

It is an amenable number.

159813816 is an abundant number, since it is smaller than the sum of its proper divisors (239720784).

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

159813816 is a wasteful number, since it uses less digits than its factorization.

159813816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6658918 (or 6658914 counting only the distinct ones).

The product of its digits is 51840, while the sum is 42.

The square root of 159813816 is about 12641.7489296379. The cubic root of 159813816 is about 542.6728661168.

The spelling of 159813816 in words is "one hundred fifty-nine million, eight hundred thirteen thousand, eight hundred sixteen".