2116571052041 has 2 divisors, whose sum is σ = 2116571052042. Its totient is φ = 2116571052040.

The previous prime is 2116571051971. The next prime is 2116571052091. The reversal of 2116571052041 is 1402501756112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1583117568400 + 533453483641 = 1258220^2 + 730379^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116571052041 - 2¹⁰ = 2116571051017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2116571051992 and 2116571052010.

It is not a weakly prime, because it can be changed into another prime (2116571052091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058285526020 + 1058285526021.

It is an arithmetic number, because the mean of its divisors is an integer number (1058285526021).

Almost surely, 2^{2116571052041} is an apocalyptic number.

It is an amenable number.

2116571052041 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116571052041 is an equidigital number, since it uses as much as digits as its factorization.

2116571052041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 35.

The spelling of 2116571052041 in words is "two trillion, one hundred sixteen billion, five hundred seventy-one million, fifty-two thousand, forty-one".