5666055601 has 2 divisors, whose sum is σ = 5666055602. Its totient is φ = 5666055600.

The previous prime is 5666055599. The next prime is 5666055653. The reversal of 5666055601 is 1065506665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4505631376 + 1160424225 = 67124^2 + 34065^2 .

It is a cyclic number.

It is not a de Polignac number, because 5666055601 - 2¹ = 5666055599 is a prime.

Together with 5666055599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5666055401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833027800 + 2833027801.

It is an arithmetic number, because the mean of its divisors is an integer number (2833027801).

Almost surely, 2^5666055601 is an apocalyptic number.

It is an amenable number.

5666055601 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666055601 is an equidigital number, since it uses as much as digits as its factorization.

5666055601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 5666055601 is about 75273.2063951045. The cubic root of 5666055601 is about 1782.7629943202.

The spelling of 5666055601 in words is "five billion, six hundred sixty-six million, fifty-five thousand, six hundred one".