159866532 has 144 divisors (see below), whose sum is σ = 491487360. Its totient is φ = 42799104.

The previous prime is 159866527. The next prime is 159866557. The reversal of 159866532 is 235668951.

159866532 is a `hidden beast` number, since 1 + 59 + 8 + 66 + 532 = 666.

159866532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 828228 + ... + 828420.

Almost surely, 2^159866532 is an apocalyptic number.

159866532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159866532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245743680).

159866532 is an abundant number, since it is smaller than the sum of its proper divisors (331620828).

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

159866532 is a wasteful number, since it uses less digits than its factorization.

159866532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 397 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 159866532 is about 12643.8337540479. The cubic root of 159866532 is about 542.7325280380.

The spelling of 159866532 in words is "one hundred fifty-nine million, eight hundred sixty-six thousand, five hundred thirty-two".