159561984 has 36 divisors (see below), whose sum is σ = 424669616. Its totient is φ = 53187072.

The previous prime is 159561977. The next prime is 159562009. The reversal of 159561984 is 489165951.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103114 + ... + 104649.

Almost surely, 2^159561984 is an apocalyptic number.

It is an amenable number.

159561984 is an abundant number, since it is smaller than the sum of its proper divisors (265107632).

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

159561984 is an equidigital number, since it uses as much as digits as its factorization.

159561984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207782 (or 207768 counting only the distinct ones).

The product of its digits is 388800, while the sum is 48.

The square root of 159561984 is about 12631.7846720089. The cubic root of 159561984 is about 542.3876712506.

The spelling of 159561984 in words is "one hundred fifty-nine million, five hundred sixty-one thousand, nine hundred eighty-four".