159545520 has 120 divisors (see below), whose sum is σ = 543527712. Its totient is φ = 41932800.

The previous prime is 159545509. The next prime is 159545521. The reversal of 159545520 is 25545951.

159545520 is a `hidden beast` number, since 1 + 5 + 95 + 45 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (159545521) 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 23 ways as a sum of consecutive naturals, for example, 49560 + ... + 52680.

Almost surely, 2^159545520 is an apocalyptic number.

159545520 is a gapful number since it is divisible by the number (10) 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 159545520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271763856).

159545520 is an abundant number, since it is smaller than the sum of its proper divisors (383982192).

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

159545520 is a wasteful number, since it uses less digits than its factorization.

159545520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211 (or 3202 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The square root of 159545520 is about 12631.1329658111. The cubic root of 159545520 is about 542.3690156420.

The spelling of 159545520 in words is "one hundred fifty-nine million, five hundred forty-five thousand, five hundred twenty".