22543655512597 has 2 divisors, whose sum is σ = 22543655512598. Its totient is φ = 22543655512596.

The previous prime is 22543655512589. The next prime is 22543655512621. The reversal of 22543655512597 is 79521555634522.

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., 21705526248561 + 838129264036 = 4658919^2 + 915494^2 .

It is a cyclic number.

It is not a de Polignac number, because 22543655512597 - 2³ = 22543655512589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22543655512997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11271827756298 + 11271827756299.

It is an arithmetic number, because the mean of its divisors is an integer number (11271827756299).

Almost surely, 2^{22543655512597} is an apocalyptic number.

It is an amenable number.

22543655512597 is a deficient number, since it is larger than the sum of its proper divisors (1).

22543655512597 is an equidigital number, since it uses as much as digits as its factorization.

22543655512597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400000, while the sum is 61.

The spelling of 22543655512597 in words is "twenty-two trillion, five hundred forty-three billion, six hundred fifty-five million, five hundred twelve thousand, five hundred ninety-seven".