6680744280 has 576 divisors, whose sum is σ = 27486950400. Its totient is φ = 1397813760.

The previous prime is 6680744183. The next prime is 6680744281. The reversal of 6680744280 is 824470866.

It is a super-3 number, since 3×6680744280³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680744281) by changing a digit.

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 143 ways as a sum of consecutive naturals, for example, 10389639 + ... + 10390281.

It is an arithmetic number, because the mean of its divisors is an integer number (47720400).

Almost surely, 2^6680744280 is an apocalyptic number.

6680744280 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 6680744280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13743475200).

6680744280 is an abundant number, since it is smaller than the sum of its proper divisors (20806206120).

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

6680744280 is a wasteful number, since it uses less digits than its factorization.

6680744280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 6680744280 is about 81735.8200546125. The cubic root of 6680744280 is about 1883.3958805203.

The spelling of 6680744280 in words is "six billion, six hundred eighty million, seven hundred forty-four thousand, two hundred eighty".