6564966808807 has 8 divisors (see below), whose sum is σ = 7163577403920. Its totient is φ = 5966655452160.

The previous prime is 6564966808759. The next prime is 6564966808837. The reversal of 6564966808807 is 7088086694656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6564966808807 - 2³¹ = 6562819325159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6564966808807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6564966808837) 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, 74763738 + ... + 74851495.

It is an arithmetic number, because the mean of its divisors is an integer number (895447175490).

Almost surely, 2^{6564966808807} is an apocalyptic number.

6564966808807 is a deficient number, since it is larger than the sum of its proper divisors (598610595113).

6564966808807 is a wasteful number, since it uses less digits than its factorization.

6564966808807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149619233.

The product of its (nonzero) digits is 836075520, while the sum is 73.

The spelling of 6564966808807 in words is "six trillion, five hundred sixty-four billion, nine hundred sixty-six million, eight hundred eight thousand, eight hundred seven".