564442505244466 has 32 divisors (see below), whose sum is σ = 899369873747568. Its totient is φ = 264760114544640.

The previous prime is 564442505244461. The next prime is 564442505244481. The reversal of 564442505244466 is 664442505244465.

It can be written as a sum of positive squares in 8 ways, for example, as 261873144425025 + 302569360819441 = 16182495^2 + 17394521^2 .

It is not an unprimeable number, because it can be changed into a prime (564442505244461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251748466 + ... + 253980658.

Almost surely, 2^{564442505244466} is an apocalyptic number.

564442505244466 is a deficient number, since it is larger than the sum of its proper divisors (334927368503102).

564442505244466 is a wasteful number, since it uses less digits than its factorization.

564442505244466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256286.

The product of its (nonzero) digits is 442368000, while the sum is 61.

Subtracting 564442505244466 from its reverse (664442505244465), we obtain a palindrome (99999999999999).

The spelling of 564442505244466 in words is "five hundred sixty-four trillion, four hundred forty-two billion, five hundred five million, two hundred forty-four thousand, four hundred sixty-six".