564420854205 has 24 divisors (see below), whose sum is σ = 1053585595608. Its totient is φ = 277868727936.

The previous prime is 564420854171. The next prime is 564420854219. The reversal of 564420854205 is 502458024465.

564420854205 is a `hidden beast` number, since 5 + 64 + 42 + 0 + 8 + 542 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 68406310116 + 496014544089 = 261546^2 + 704283^2 .

It is not a de Polignac number, because 564420854205 - 2⁸ = 564420853949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 482410402 + ... + 482411571.

It is an arithmetic number, because the mean of its divisors is an integer number (43899399817).

Almost surely, 2^564420854205 is an apocalyptic number.

It is an amenable number.

564420854205 is a deficient number, since it is larger than the sum of its proper divisors (489164741403).

564420854205 is a wasteful number, since it uses less digits than its factorization.

564420854205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964821997 (or 964821994 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 45.

The spelling of 564420854205 in words is "five hundred sixty-four billion, four hundred twenty million, eight hundred fifty-four thousand, two hundred five".