6564743317 has 12 divisors (see below), whose sum is σ = 7217835520. Its totient is φ = 5966258760.

The previous prime is 6564743309. The next prime is 6564743347. The reversal of 6564743317 is 7133474656.

It is not a de Polignac number, because 6564743317 - 2³ = 6564743309 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6564743347) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 660934 + ... + 670792.

Almost surely, 2^6564743317 is an apocalyptic number.

It is an amenable number.

6564743317 is a deficient number, since it is larger than the sum of its proper divisors (653092203).

6564743317 is a wasteful number, since it uses less digits than its factorization.

6564743317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15384 (or 15373 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 46.

The square root of 6564743317 is about 81023.1036001461. The cubic root of 6564743317 is about 1872.4314047515.

The spelling of 6564743317 in words is "six billion, five hundred sixty-four million, seven hundred forty-three thousand, three hundred seventeen".