6663598800 has 480 divisors, whose sum is σ = 23992464384. Its totient is φ = 1572864000.

The previous prime is 6663598793. The next prime is 6663598819. The reversal of 6663598800 is 88953666.

It is a super-2 number, since 2×6663598800² = 88807097934722880000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25928272 + ... + 25928528.

Almost surely, 2^6663598800 is an apocalyptic number.

6663598800 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 6663598800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11996232192).

6663598800 is an abundant number, since it is smaller than the sum of its proper divisors (17328865584).

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

6663598800 is a wasteful number, since it uses less digits than its factorization.

6663598800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The square root of 6663598800 is about 81630.8691611207. The cubic root of 6663598800 is about 1881.7833161600.

The spelling of 6663598800 in words is "six billion, six hundred sixty-three million, five hundred ninety-eight thousand, eight hundred".