22636220399543 has 2 divisors, whose sum is σ = 22636220399544. Its totient is φ = 22636220399542.

The previous prime is 22636220399537. The next prime is 22636220399603. The reversal of 22636220399543 is 34599302263622.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22636220399543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22636220395543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11318110199771 + 11318110199772.

It is an arithmetic number, because the mean of its divisors is an integer number (11318110199772).

Almost surely, 2^{22636220399543} is an apocalyptic number.

22636220399543 is a deficient number, since it is larger than the sum of its proper divisors (1).

22636220399543 is an equidigital number, since it uses as much as digits as its factorization.

22636220399543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25194240, while the sum is 56.

The spelling of 22636220399543 in words is "twenty-two trillion, six hundred thirty-six billion, two hundred twenty million, three hundred ninety-nine thousand, five hundred forty-three".