6564588464 has 80 divisors (see below), whose sum is σ = 15656974080. Its totient is φ = 2603301120.

The previous prime is 6564588463. The next prime is 6564588479. The reversal of 6564588464 is 4648854656.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (6564588463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55634 + ... + 127374.

It is an arithmetic number, because the mean of its divisors is an integer number (195712176).

Almost surely, 2^6564588464 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 6564588464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7828487040).

6564588464 is an abundant number, since it is smaller than the sum of its proper divisors (9092385616).

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

6564588464 is a wasteful number, since it uses less digits than its factorization.

6564588464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71818 (or 71812 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 56.

The square root of 6564588464 is about 81022.1479843629. The cubic root of 6564588464 is about 1872.4166819671.

The spelling of 6564588464 in words is "six billion, five hundred sixty-four million, five hundred eighty-eight thousand, four hundred sixty-four".