6516626560 has 128 divisors (see below), whose sum is σ = 16137999360. Its totient is φ = 2513694720.

The previous prime is 6516626503. The next prime is 6516626659. The reversal of 6516626560 is 656266156.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9979194 + ... + 9979846.

It is an arithmetic number, because the mean of its divisors is an integer number (126078120).

Almost surely, 2^6516626560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6516626560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8068999680).

6516626560 is an abundant number, since it is smaller than the sum of its proper divisors (9621372800).

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

6516626560 is a wasteful number, since it uses less digits than its factorization.

6516626560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 6516626560 is about 80725.6251756529. The cubic root of 6516626560 is about 1867.8454753747.

The spelling of 6516626560 in words is "six billion, five hundred sixteen million, six hundred twenty-six thousand, five hundred sixty".