2066159520 has 144 divisors (see below), whose sum is σ = 7294046760. Its totient is φ = 531965952.

The previous prime is 2066159509. The next prime is 2066159533. The reversal of 2066159520 is 259516602.

2066159520 is a `hidden beast` number, since 2 + 0 + 6 + 61 + 595 + 2 + 0 = 666.

2066159520 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1413459216 + 652700304 = 37596^2 + 25548^2 .

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17022 + ... + 66498.

Almost surely, 2^2066159520 is an apocalyptic number.

2066159520 is a gapful number since it is divisible by the number (20) 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 2066159520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3647023380).

2066159520 is an abundant number, since it is smaller than the sum of its proper divisors (5227887240).

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

2066159520 is a wasteful number, since it uses less digits than its factorization.

2066159520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49527 (or 49516 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 2066159520 is about 45455.0274447173. The cubic root of 2066159520 is about 1273.6632448939.

The spelling of 2066159520 in words is "two billion, sixty-six million, one hundred fifty-nine thousand, five hundred twenty".