564422644505 has 4 divisors (see below), whose sum is σ = 677307173412. Its totient is φ = 451538115600.

The previous prime is 564422644501. The next prime is 564422644531. The reversal of 564422644505 is 505446224465.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 349952698624 + 214469945881 = 591568^2 + 463109^2 .

It is not a de Polignac number, because 564422644505 - 2² = 564422644501 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 564422644505.

It is not an unprimeable number, because it can be changed into a prime (564422644501) 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 3 ways as a sum of consecutive naturals, for example, 56442264446 + ... + 56442264455.

It is an arithmetic number, because the mean of its divisors is an integer number (169326793353).

Almost surely, 2^564422644505 is an apocalyptic number.

It is an amenable number.

564422644505 is a deficient number, since it is larger than the sum of its proper divisors (112884528907).

564422644505 is a wasteful number, since it uses less digits than its factorization.

564422644505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112884528906.

The product of its (nonzero) digits is 4608000, while the sum is 47.

The spelling of 564422644505 in words is "five hundred sixty-four billion, four hundred twenty-two million, six hundred forty-four thousand, five hundred five".