6655456680 has 32 divisors (see below), whose sum is σ = 19966370400. Its totient is φ = 1774788416.

The previous prime is 6655456679. The next prime is 6655456729. The reversal of 6655456680 is 866545566.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27730950 + ... + 27731189.

It is an arithmetic number, because the mean of its divisors is an integer number (623949075).

Almost surely, 2^6655456680 is an apocalyptic number.

6655456680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6655456680 is an abundant number, since it is smaller than the sum of its proper divisors (13310913720).

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

6655456680 is a wasteful number, since it uses less digits than its factorization.

6655456680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55462153 (or 55462149 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 51.

The square root of 6655456680 is about 81580.9823427004. The cubic root of 6655456680 is about 1881.0165658046.

The spelling of 6655456680 in words is "six billion, six hundred fifty-five million, four hundred fifty-six thousand, six hundred eighty".