5665565660519 has 2 divisors, whose sum is σ = 5665565660520. Its totient is φ = 5665565660518.

The previous prime is 5665565660477. The next prime is 5665565660527. The reversal of 5665565660519 is 9150665655665.

5665565660519 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5665565660519 - 2⁸ = 5665565660263 is a prime.

It is a super-2 number, since 2×5665565660519² (a number of 26 digits) contains 22 as substring.

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 (5665562660519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832782830259 + 2832782830260.

It is an arithmetic number, because the mean of its divisors is an integer number (2832782830260).

Almost surely, 2^{5665565660519} is an apocalyptic number.

5665565660519 is a deficient number, since it is larger than the sum of its proper divisors (1).

5665565660519 is an equidigital number, since it uses as much as digits as its factorization.

5665565660519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 218700000, while the sum is 65.

The spelling of 5665565660519 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-five million, six hundred sixty thousand, five hundred nineteen".