159685456 has 40 divisors (see below), whose sum is σ = 358451264. Its totient is φ = 67495680.

The previous prime is 159685439. The next prime is 159685457. The reversal of 159685456 is 654586951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159685457) by changing a digit.

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, 1590 + ... + 17941.

Almost surely, 2^159685456 is an apocalyptic number.

159685456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

159685456 is an abundant number, since it is smaller than the sum of its proper divisors (198765808).

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

159685456 is a wasteful number, since it uses less digits than its factorization.

159685456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19619 (or 19613 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 49.

The square root of 159685456 is about 12636.6710806288. The cubic root of 159685456 is about 542.5275383672.

The spelling of 159685456 in words is "one hundred fifty-nine million, six hundred eighty-five thousand, four hundred fifty-six".