6687663830660 has 48 divisors (see below), whose sum is σ = 14393215468800. Its totient is φ = 2609382157824.

The previous prime is 6687663830657. The next prime is 6687663830723. The reversal of 6687663830660 is 660383667866.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25367045 + ... + 25629324.

It is an arithmetic number, because the mean of its divisors is an integer number (299858655600).

Almost surely, 2^{6687663830660} is an apocalyptic number.

It is an amenable number.

6687663830660 is an abundant number, since it is smaller than the sum of its proper divisors (7705551638140).

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

6687663830660 is a wasteful number, since it uses less digits than its factorization.

6687663830660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50996540 (or 50996538 counting only the distinct ones).

The product of its (nonzero) digits is 188116992, while the sum is 65.

The spelling of 6687663830660 in words is "six trillion, six hundred eighty-seven billion, six hundred sixty-three million, eight hundred thirty thousand, six hundred sixty".