5665555122289 has 2 divisors, whose sum is σ = 5665555122290. Its totient is φ = 5665555122288.

The previous prime is 5665555122223. The next prime is 5665555122299. The reversal of 5665555122289 is 9822215555665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5616862080064 + 48693042225 = 2369992^2 + 220665^2 .

It is a cyclic number.

It is not a de Polignac number, because 5665555122289 - 2¹⁵ = 5665555089521 is a prime.

It is a super-3 number, since 3×5665555122289³ (a number of 39 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (5665555122299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832777561144 + 2832777561145.

It is an arithmetic number, because the mean of its divisors is an integer number (2832777561145).

Almost surely, 2^{5665555122289} is an apocalyptic number.

It is an amenable number.

5665555122289 is a deficient number, since it is larger than the sum of its proper divisors (1).

5665555122289 is an equidigital number, since it uses as much as digits as its factorization.

5665555122289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800000, while the sum is 61.

The spelling of 5665555122289 in words is "five trillion, six hundred sixty-five billion, five hundred fifty-five million, one hundred twenty-two thousand, two hundred eighty-nine".