2660044800 has 312 divisors, whose sum is σ = 10059334336. Its totient is φ = 607518720.

The previous prime is 2660044789. The next prime is 2660044813. The reversal of 2660044800 is 84400662.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 2149782 + ... + 2151018.

Almost surely, 2^2660044800 is an apocalyptic number.

2660044800 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 2660044800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5029667168).

2660044800 is an abundant number, since it is smaller than the sum of its proper divisors (7399289536).

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

2660044800 is a wasteful number, since it uses less digits than its factorization.

2660044800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 2660044800 is about 51575.6221484530. The cubic root of 2660044800 is about 1385.5737608082.

The spelling of 2660044800 in words is "two billion, six hundred sixty million, forty-four thousand, eight hundred".