6564841873372 has 24 divisors (see below), whose sum is σ = 11533509550080. Its totient is φ = 3269574755760.

The previous prime is 6564841873339. The next prime is 6564841873379. The reversal of 6564841873372 is 2733781484656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6564841873379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1433404 + ... + 3896707.

It is an arithmetic number, because the mean of its divisors is an integer number (480562897920).

Almost surely, 2^{6564841873372} is an apocalyptic number.

It is an amenable number.

6564841873372 is a deficient number, since it is larger than the sum of its proper divisors (4968667676708).

6564841873372 is a wasteful number, since it uses less digits than its factorization.

6564841873372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5331321 (or 5331319 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 64.

The spelling of 6564841873372 in words is "six trillion, five hundred sixty-four billion, eight hundred forty-one million, eight hundred seventy-three thousand, three hundred seventy-two".