564323120516501 has 2 divisors, whose sum is σ = 564323120516502. Its totient is φ = 564323120516500.

The previous prime is 564323120516357. The next prime is 564323120516527. The reversal of 564323120516501 is 105615021323465.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 560067770394001 + 4255350122500 = 23665751^2 + 2062850^2 .

It is a cyclic number.

It is not a de Polignac number, because 564323120516501 - 2²² = 564323116322197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564323120516801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282161560258250 + 282161560258251.

It is an arithmetic number, because the mean of its divisors is an integer number (282161560258251).

Almost surely, 2^{564323120516501} is an apocalyptic number.

It is an amenable number.

564323120516501 is a deficient number, since it is larger than the sum of its proper divisors (1).

564323120516501 is an equidigital number, since it uses as much as digits as its factorization.

564323120516501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 44.

Adding to 564323120516501 its reverse (105615021323465), we get a palindrome (669938141839966).

The spelling of 564323120516501 in words is "five hundred sixty-four trillion, three hundred twenty-three billion, one hundred twenty million, five hundred sixteen thousand, five hundred one".