6600622660 has 24 divisors (see below), whose sum is σ = 14156231040. Its totient is φ = 2584073184.

The previous prime is 6600622649. The next prime is 6600622663. The reversal of 6600622660 is 662260066.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6600622663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3510030 + ... + 3511909.

It is an arithmetic number, because the mean of its divisors is an integer number (589842960).

Almost surely, 2^6600622660 is an apocalyptic number.

It is an amenable number.

6600622660 is an abundant number, since it is smaller than the sum of its proper divisors (7555608380).

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

6600622660 is a wasteful number, since it uses less digits than its factorization.

6600622660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021995 (or 7021993 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 6600622660 is about 81244.2161633676. The cubic root of 6600622660 is about 1875.8364419761.

The spelling of 6600622660 in words is "six billion, six hundred million, six hundred twenty-two thousand, six hundred sixty".