5665207771 has 2 divisors, whose sum is σ = 5665207772. Its totient is φ = 5665207770.

The previous prime is 5665207753. The next prime is 5665207777. The reversal of 5665207771 is 1777025665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5665207771 - 2¹⁵ = 5665175003 is a prime.

It is not a weakly prime, because it can be changed into another prime (5665207777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832603885 + 2832603886.

It is an arithmetic number, because the mean of its divisors is an integer number (2832603886).

Almost surely, 2^5665207771 is an apocalyptic number.

5665207771 is a deficient number, since it is larger than the sum of its proper divisors (1).

5665207771 is an equidigital number, since it uses as much as digits as its factorization.

5665207771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 617400, while the sum is 46.

The square root of 5665207771 is about 75267.5744992490. The cubic root of 5665207771 is about 1782.6740697107.

The spelling of 5665207771 in words is "five billion, six hundred sixty-five million, two hundred seven thousand, seven hundred seventy-one".