159633564 has 12 divisors (see below), whose sum is σ = 372478344. Its totient is φ = 53211184.

The previous prime is 159633557. The next prime is 159633569. The reversal of 159633564 is 465336951.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159633569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6651387 + ... + 6651410.

It is an arithmetic number, because the mean of its divisors is an integer number (31039862).

Almost surely, 2^159633564 is an apocalyptic number.

It is an amenable number.

159633564 is an abundant number, since it is smaller than the sum of its proper divisors (212844780).

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

159633564 is a wasteful number, since it uses less digits than its factorization.

159633564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13302804 (or 13302802 counting only the distinct ones).

The product of its digits is 291600, while the sum is 42.

The square root of 159633564 is about 12634.6176831751. The cubic root of 159633564 is about 542.4687647218.

The spelling of 159633564 in words is "one hundred fifty-nine million, six hundred thirty-three thousand, five hundred sixty-four".