2660544000 has 480 divisors, whose sum is σ = 9958291200. Its totient is φ = 681984000.

The previous prime is 2660543999. The next prime is 2660544011. The reversal of 2660544000 is 4450662.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (480).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17855926 + ... + 17856074.

It is an arithmetic number, because the mean of its divisors is an integer number (20746440).

Almost surely, 2^2660544000 is an apocalyptic number.

2660544000 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 2660544000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4979145600).

2660544000 is an abundant number, since it is smaller than the sum of its proper divisors (7297747200).

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

2660544000 is a wasteful number, since it uses less digits than its factorization.

2660544000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2660544000 is about 51580.4614170909. The cubic root of 2660544000 is about 1385.6604304209.

Adding to 2660544000 its reverse (4450662), we get a palindrome (2664994662).

The spelling of 2660544000 in words is "two billion, six hundred sixty million, five hundred forty-four thousand".