6660316800 has 384 divisors, whose sum is σ = 24580123200. Its totient is φ = 1761177600.

The previous prime is 6660316777. The next prime is 6660316811. The reversal of 6660316800 is 86130666.

It is a tau number, because it is divible by the number of its divisors (384).

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 47 ways as a sum of consecutive naturals, for example, 13564555 + ... + 13565045.

Almost surely, 2^6660316800 is an apocalyptic number.

6660316800 is a gapful number since it is divisible by the number (60) 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 6660316800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12290061600).

6660316800 is an abundant number, since it is smaller than the sum of its proper divisors (17919806400).

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

6660316800 is a wasteful number, since it uses less digits than its factorization.

6660316800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 6660316800 is about 81610.7639959338. The cubic root of 6660316800 is about 1881.4743226138.

The spelling of 6660316800 in words is "six billion, six hundred sixty million, three hundred sixteen thousand, eight hundred".