6637105841 has 2 divisors, whose sum is σ = 6637105842. Its totient is φ = 6637105840.

The previous prime is 6637105831. The next prime is 6637105901. The reversal of 6637105841 is 1485017366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5553379441 + 1083726400 = 74521^2 + 32920^2 .

It is a cyclic number.

It is not a de Polignac number, because 6637105841 - 2³⁰ = 5563364017 is a prime.

It is not a weakly prime, because it can be changed into another prime (6637105831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3318552920 + 3318552921.

It is an arithmetic number, because the mean of its divisors is an integer number (3318552921).

Almost surely, 2^6637105841 is an apocalyptic number.

It is an amenable number.

6637105841 is a deficient number, since it is larger than the sum of its proper divisors (1).

6637105841 is an equidigital number, since it uses as much as digits as its factorization.

6637105841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 6637105841 is about 81468.4346296159. The cubic root of 6637105841 is about 1879.2861558180.

The spelling of 6637105841 in words is "six billion, six hundred thirty-seven million, one hundred five thousand, eight hundred forty-one".