564244442466 has 16 divisors (see below), whose sum is σ = 1129467640224. Its totient is φ = 187918354944.

The previous prime is 564244442429. The next prime is 564244442491. The reversal of 564244442466 is 664244442465.

It is a super-2 number, since 2×564244442466² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40773976 + ... + 40787811.

It is an arithmetic number, because the mean of its divisors is an integer number (70591727514).

Almost surely, 2^564244442466 is an apocalyptic number.

564244442466 is an abundant number, since it is smaller than the sum of its proper divisors (565223197758).

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

564244442466 is a wasteful number, since it uses less digits than its factorization.

564244442466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81562945.

The product of its digits is 17694720, while the sum is 51.

Subtracting 564244442466 from its reverse (664244442465), we obtain a palindrome (99999999999).

The spelling of 564244442466 in words is "five hundred sixty-four billion, two hundred forty-four million, four hundred forty-two thousand, four hundred sixty-six".