564216440200321 has 4 divisors (see below), whose sum is σ = 588747589774272. Its totient is φ = 539685290626372.

The previous prime is 564216440200267. The next prime is 564216440200349. The reversal of 564216440200321 is 123002044612465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 564216440200321 - 2²⁹ = 564215903329409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564216440200351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12265574786941 + ... + 12265574786986.

It is an arithmetic number, because the mean of its divisors is an integer number (147186897443568).

Almost surely, 2^{564216440200321} is an apocalyptic number.

It is an amenable number.

564216440200321 is a deficient number, since it is larger than the sum of its proper divisors (24531149573951).

564216440200321 is a wasteful number, since it uses less digits than its factorization.

564216440200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24531149573950.

The product of its (nonzero) digits is 276480, while the sum is 40.

Adding to 564216440200321 its reverse (123002044612465), we get a palindrome (687218484812786).

The spelling of 564216440200321 in words is "five hundred sixty-four trillion, two hundred sixteen billion, four hundred forty million, two hundred thousand, three hundred twenty-one".