6561275360 has 24 divisors (see below), whose sum is σ = 15501013416. Its totient is φ = 2624510080.

The previous prime is 6561275321. The next prime is 6561275381. The reversal of 6561275360 is 635721656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20503826 + ... + 20504145.

It is an arithmetic number, because the mean of its divisors is an integer number (645875559).

Almost surely, 2^6561275360 is an apocalyptic number.

It is an amenable number.

6561275360 is an abundant number, since it is smaller than the sum of its proper divisors (8939738056).

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

6561275360 is a wasteful number, since it uses less digits than its factorization.

6561275360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41007986 (or 41007978 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 6561275360 is about 81001.6997352525. The cubic root of 6561275360 is about 1872.1016302240.

The spelling of 6561275360 in words is "six billion, five hundred sixty-one million, two hundred seventy-five thousand, three hundred sixty".