2160540000 has 240 divisors, whose sum is σ = 7876416240. Its totient is φ = 576000000.

The previous prime is 2160539993. The next prime is 2160540007. The reversal of 2160540000 is 450612.

It is a happy number.

2160540000 is a `hidden beast` number, since 21 + 605 + 40 + 0 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2160539993) and next prime (2160540007).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160540007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 538000 + ... + 542000.

It is an arithmetic number, because the mean of its divisors is an integer number (32818401).

Almost surely, 2^2160540000 is an apocalyptic number.

2160540000 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 2160540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3938208120).

2160540000 is an abundant number, since it is smaller than the sum of its proper divisors (5715876240).

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

2160540000 is an equidigital number, since it uses as much as digits as its factorization.

2160540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040 (or 4011 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2160540000 is about 46481.6092664615. The cubic root of 2160540000 is about 1292.7685267781.

Adding to 2160540000 its reverse (450612), we get a palindrome (2160990612).

The spelling of 2160540000 in words is "two billion, one hundred sixty million, five hundred forty thousand".