5666378099 has 2 divisors, whose sum is σ = 5666378100. Its totient is φ = 5666378098.

The previous prime is 5666378089. The next prime is 5666378101. The reversal of 5666378099 is 9908736665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5666378099 - 2⁴ = 5666378083 is a prime.

It is a Sophie Germain prime.

Together with 5666378101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5666378089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833189049 + 2833189050.

It is an arithmetic number, because the mean of its divisors is an integer number (2833189050).

Almost surely, 2^5666378099 is an apocalyptic number.

5666378099 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666378099 is an equidigital number, since it uses as much as digits as its factorization.

5666378099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14696640, while the sum is 59.

The square root of 5666378099 is about 75275.3485478480. The cubic root of 5666378099 is about 1782.7968171788.

The spelling of 5666378099 in words is "five billion, six hundred sixty-six million, three hundred seventy-eight thousand, ninety-nine".