6680520000 has 840 divisors, whose sum is σ = 29956060992. Its totient is φ = 1382400000.

The previous prime is 6680519999. The next prime is 6680520037. The reversal of 6680520000 is 250866.

6680520000 is a `hidden beast` number, since 66 + 80 + 520 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (840).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 27719880 + ... + 27720120.

Almost surely, 2^6680520000 is an apocalyptic number.

6680520000 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 6680520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14978030496).

6680520000 is an abundant number, since it is smaller than the sum of its proper divisors (23275540992).

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

6680520000 is a wasteful number, since it uses less digits than its factorization.

6680520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 6680520000 is about 81734.4480620014. The cubic root of 6680520000 is about 1883.3748043878.

Adding to 6680520000 its reverse (250866), we get a palindrome (6680770866).

The spelling of 6680520000 in words is "six billion, six hundred eighty million, five hundred twenty thousand".