6651116560 has 40 divisors (see below), whose sum is σ = 16869652416. Its totient is φ = 2418587520.

The previous prime is 6651116543. The next prime is 6651116569. The reversal of 6651116560 is 656111566.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (6651116569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3778164 + ... + 3779923.

Almost surely, 2^6651116560 is an apocalyptic number.

It is an amenable number.

6651116560 is an abundant number, since it is smaller than the sum of its proper divisors (10218535856).

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

6651116560 is a wasteful number, since it uses less digits than its factorization.

6651116560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7558111 (or 7558105 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 6651116560 is about 81554.3779327634. The cubic root of 6651116560 is about 1880.6075974829.

The spelling of 6651116560 in words is "six billion, six hundred fifty-one million, one hundred sixteen thousand, five hundred sixty".