6543333680 has 120 divisors (see below), whose sum is σ = 16931635056. Its totient is φ = 2337707520.

The previous prime is 6543333679. The next prime is 6543333689. The reversal of 6543333680 is 863333456.

It is not an unprimeable number, because it can be changed into a prime (6543333689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 996167 + ... + 1002713.

Almost surely, 2^6543333680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6543333680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8465817528).

6543333680 is an abundant number, since it is smaller than the sum of its proper divisors (10388301376).

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

6543333680 is a wasteful number, since it uses less digits than its factorization.

6543333680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6635 (or 6598 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 41.

The square root of 6543333680 is about 80890.8751343438. The cubic root of 6543333680 is about 1870.3936639643.

The spelling of 6543333680 in words is "six billion, five hundred forty-three million, three hundred thirty-three thousand, six hundred eighty".