159989580 has 120 divisors (see below), whose sum is σ = 510436080. Its totient is φ = 41938560.

The previous prime is 159989573. The next prime is 159989597. The reversal of 159989580 is 85989951.

159989580 is a `hidden beast` number, since 1 + 59 + 9 + 8 + 9 + 580 = 666.

159989580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 98011 + ... + 99629.

It is an arithmetic number, because the mean of its divisors is an integer number (4253634).

Almost surely, 2^159989580 is an apocalyptic number.

159989580 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 159989580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255218040).

159989580 is an abundant number, since it is smaller than the sum of its proper divisors (350446500).

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

159989580 is a wasteful number, since it uses less digits than its factorization.

159989580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701 (or 1690 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 54.

The square root of 159989580 is about 12648.6987473020. The cubic root of 159989580 is about 542.8717379667.

It can be divided in two parts, 1 and 59989580, that added together give a triangular number (59989581 = T₁₀₉₅₃).

The spelling of 159989580 in words is "one hundred fifty-nine million, nine hundred eighty-nine thousand, five hundred eighty".