159565020 has 48 divisors (see below), whose sum is σ = 454116768. Its totient is φ = 41852160.

The previous prime is 159565013. The next prime is 159565039. The reversal of 159565020 is 20565951.

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, 18139 + ... + 25458.

It is an arithmetic number, because the mean of its divisors is an integer number (9460766).

Almost surely, 2^159565020 is an apocalyptic number.

159565020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159565020 is an abundant number, since it is smaller than the sum of its proper divisors (294551748).

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

159565020 is a wasteful number, since it uses less digits than its factorization.

159565020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43670 (or 43668 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 159565020 is about 12631.9048444801. The cubic root of 159565020 is about 542.3911112482.

The spelling of 159565020 in words is "one hundred fifty-nine million, five hundred sixty-five thousand, twenty".