5666517919 has 2 divisors, whose sum is σ = 5666517920. Its totient is φ = 5666517918.

The previous prime is 5666517907. The next prime is 5666517937. The reversal of 5666517919 is 9197156665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5666517919 - 2⁹ = 5666517407 is a prime.

It is a super-2 number, since 2×5666517919² = 64218850652696181122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5666517919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5666217919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833258959 + 2833258960.

It is an arithmetic number, because the mean of its divisors is an integer number (2833258960).

Almost surely, 2^5666517919 is an apocalyptic number.

5666517919 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666517919 is an equidigital number, since it uses as much as digits as its factorization.

5666517919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3061800, while the sum is 55.

The square root of 5666517919 is about 75276.2772658160. The cubic root of 5666517919 is about 1782.8114807844.

The spelling of 5666517919 in words is "five billion, six hundred sixty-six million, five hundred seventeen thousand, nine hundred nineteen".