22543516013 has 2 divisors, whose sum is σ = 22543516014. Its totient is φ = 22543516012.

The previous prime is 22543516001. The next prime is 22543516129. The reversal of 22543516013 is 31061534522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22536614884 + 6901129 = 150122^2 + 2627^2 .

It is a cyclic number.

It is not a de Polignac number, because 22543516013 - 2⁴ = 22543515997 is a prime.

It is a super-2 number, since 2×22543516013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22543516613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11271758006 + 11271758007.

It is an arithmetic number, because the mean of its divisors is an integer number (11271758007).

Almost surely, 2^22543516013 is an apocalyptic number.

It is an amenable number.

22543516013 is a deficient number, since it is larger than the sum of its proper divisors (1).

22543516013 is an equidigital number, since it uses as much as digits as its factorization.

22543516013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 22543516013 in words is "twenty-two billion, five hundred forty-three million, five hundred sixteen thousand, thirteen".