22751388216533 has 2 divisors, whose sum is σ = 22751388216534. Its totient is φ = 22751388216532.

The previous prime is 22751388216527. The next prime is 22751388216541. The reversal of 22751388216533 is 33561288315722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15703839319249 + 7047548897284 = 3962807^2 + 2654722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22751388216533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22751388216433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11375694108266 + 11375694108267.

It is an arithmetic number, because the mean of its divisors is an integer number (11375694108267).

Almost surely, 2^{22751388216533} is an apocalyptic number.

It is an amenable number.

22751388216533 is a deficient number, since it is larger than the sum of its proper divisors (1).

22751388216533 is an equidigital number, since it uses as much as digits as its factorization.

22751388216533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 56.

The spelling of 22751388216533 in words is "twenty-two trillion, seven hundred fifty-one billion, three hundred eighty-eight million, two hundred sixteen thousand, five hundred thirty-three".