564466664464 has 20 divisors (see below), whose sum is σ = 1095175261440. Its totient is φ = 281840790560.

The previous prime is 564466664441. The next prime is 564466664467. The reversal of 564466664464 is 464466664465.

It is a super-2 number, since 2×564466664464² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (564466664467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24521992 + ... + 24544999.

It is an arithmetic number, because the mean of its divisors is an integer number (54758763072).

Almost surely, 2^564466664464 is an apocalyptic number.

It is an amenable number.

564466664464 is a deficient number, since it is larger than the sum of its proper divisors (530708596976).

564466664464 is a wasteful number, since it uses less digits than its factorization.

564466664464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49067718 (or 49067712 counting only the distinct ones).

The product of its digits is 238878720, while the sum is 61.

Subtracting from 564466664464 its reverse (464466664465), we obtain a palindrome (99999999999).

The spelling of 564466664464 in words is "five hundred sixty-four billion, four hundred sixty-six million, six hundred sixty-four thousand, four hundred sixty-four".