5666299777 has 2 divisors, whose sum is σ = 5666299778. Its totient is φ = 5666299776.

The previous prime is 5666299703. The next prime is 5666299799. The reversal of 5666299777 is 7779926665.

It is a happy number.

5666299777 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 can be written as a sum of positive squares in only one way, i.e., 4987749376 + 678550401 = 70624^2 + 26049^2 .

It is a cyclic number.

It is not a de Polignac number, because 5666299777 - 2¹¹ = 5666297729 is a prime.

It is not a weakly prime, because it can be changed into another prime (5666299477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833149888 + 2833149889.

It is an arithmetic number, because the mean of its divisors is an integer number (2833149889).

Almost surely, 2^5666299777 is an apocalyptic number.

It is an amenable number.

5666299777 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666299777 is an equidigital number, since it uses as much as digits as its factorization.

5666299777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60011280, while the sum is 64.

The square root of 5666299777 is about 75274.8283093359. The cubic root of 5666299777 is about 1782.7886030631.

The spelling of 5666299777 in words is "five billion, six hundred sixty-six million, two hundred ninety-nine thousand, seven hundred seventy-seven".