6561680328060 has 96 divisors (see below), whose sum is σ = 21584716296192. Its totient is φ = 1468348043520.

The previous prime is 6561680328011. The next prime is 6561680328101. The reversal of 6561680328060 is 608230861656.

It is a junction number, because it is equal to n+sod(n) for n = 6561680327994 and 6561680328012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382373724 + ... + 382390883.

It is an arithmetic number, because the mean of its divisors is an integer number (224840794752).

Almost surely, 2^{6561680328060} is an apocalyptic number.

6561680328060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6561680328060 is an abundant number, since it is smaller than the sum of its proper divisors (15023035968132).

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

6561680328060 is a wasteful number, since it uses less digits than its factorization.

6561680328060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764764643 (or 764764641 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 6561680328060 in words is "six trillion, five hundred sixty-one billion, six hundred eighty million, three hundred twenty-eight thousand, sixty".