564206521500065 has 16 divisors (see below), whose sum is σ = 686615629496016. Its totient is φ = 444991963852800.

The previous prime is 564206521500029. The next prime is 564206521500077. The reversal of 564206521500065 is 560005125602465.

It can be written as a sum of positive squares in 8 ways, for example, as 28222348125841 + 535984173374224 = 5312471^2 + 23151332^2 .

It is not a de Polignac number, because 564206521500065 - 2¹⁰ = 564206521499041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 564206521499992 and 564206521500019.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329297456 + ... + 331006385.

It is an arithmetic number, because the mean of its divisors is an integer number (42913476843501).

Almost surely, 2^{564206521500065} is an apocalyptic number.

It is an amenable number.

564206521500065 is a deficient number, since it is larger than the sum of its proper divisors (122409107995951).

564206521500065 is a wasteful number, since it uses less digits than its factorization.

564206521500065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660306260.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 564206521500065 in words is "five hundred sixty-four trillion, two hundred six billion, five hundred twenty-one million, five hundred thousand, sixty-five".