6650055660 has 48 divisors (see below), whose sum is σ = 18629503200. Its totient is φ = 1772457984.

The previous prime is 6650055647. The next prime is 6650055677. The reversal of 6650055660 is 665500566.

It is a happy number.

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, 97356 + ... + 150924.

It is an arithmetic number, because the mean of its divisors is an integer number (388114650).

Almost surely, 2^6650055660 is an apocalyptic number.

6650055660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6650055660 is an abundant number, since it is smaller than the sum of its proper divisors (11979447540).

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

6650055660 is a wasteful number, since it uses less digits than its factorization.

6650055660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55650 (or 55648 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 6650055660 is about 81547.8734241427. The cubic root of 6650055660 is about 1880.5076021076.

The spelling of 6650055660 in words is "six billion, six hundred fifty million, fifty-five thousand, six hundred sixty".