23364525320557 has 2 divisors, whose sum is σ = 23364525320558. Its totient is φ = 23364525320556.

The previous prime is 23364525320537. The next prime is 23364525320569. The reversal of 23364525320557 is 75502352546332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18746986188841 + 4617539131716 = 4329779^2 + 2148846^2 .

It is a cyclic number.

It is not a de Polignac number, because 23364525320557 - 2¹⁹ = 23364524796269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23364525320537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11682262660278 + 11682262660279.

It is an arithmetic number, because the mean of its divisors is an integer number (11682262660279).

Almost surely, 2^{23364525320557} is an apocalyptic number.

It is an amenable number.

23364525320557 is a deficient number, since it is larger than the sum of its proper divisors (1).

23364525320557 is an equidigital number, since it uses as much as digits as its factorization.

23364525320557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680000, while the sum is 52.

Adding to 23364525320557 its reverse (75502352546332), we get a palindrome (98866877866889).

The spelling of 23364525320557 in words is "twenty-three trillion, three hundred sixty-four billion, five hundred twenty-five million, three hundred twenty thousand, five hundred fifty-seven".