22665016553 has 2 divisors, whose sum is σ = 22665016554. Its totient is φ = 22665016552.

The previous prime is 22665016541. The next prime is 22665016559. The reversal of 22665016553 is 35561056622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22222461184 + 442555369 = 149072^2 + 21037^2 .

It is a cyclic number.

It is not a de Polignac number, because 22665016553 - 2⁴ = 22665016537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22665016553.

It is not a weakly prime, because it can be changed into another prime (22665016559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11332508276 + 11332508277.

It is an arithmetic number, because the mean of its divisors is an integer number (11332508277).

Almost surely, 2^22665016553 is an apocalyptic number.

It is an amenable number.

22665016553 is a deficient number, since it is larger than the sum of its proper divisors (1).

22665016553 is an equidigital number, since it uses as much as digits as its factorization.

22665016553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 22665016553 in words is "twenty-two billion, six hundred sixty-five million, sixteen thousand, five hundred fifty-three".