2160389520 has 60 divisors (see below), whose sum is σ = 7255310556. Its totient is φ = 576103680.

The previous prime is 2160389503. The next prime is 2160389533. The reversal of 2160389520 is 259830612.

2160389520 is a `hidden beast` number, since 21 + 603 + 8 + 9 + 5 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 248251536 + 1912137984 = 15756^2 + 43728^2 .

It is a tau number, because it is divible by the number of its divisors (60).

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 11 ways as a sum of consecutive naturals, for example, 1499551 + ... + 1500990.

Almost surely, 2^2160389520 is an apocalyptic number.

2160389520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2160389520 is an abundant number, since it is smaller than the sum of its proper divisors (5094921036).

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

2160389520 is a wasteful number, since it uses less digits than its factorization.

2160389520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000560 (or 3000551 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2160389520 is about 46479.9905335619. The cubic root of 2160389520 is about 1292.7385126266.

The spelling of 2160389520 in words is "two billion, one hundred sixty million, three hundred eighty-nine thousand, five hundred twenty".