2111550560017 has 2 divisors, whose sum is σ = 2111550560018. Its totient is φ = 2111550560016.

The previous prime is 2111550559969. The next prime is 2111550560087. The reversal of 2111550560017 is 7100650551112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1691745050241 + 419805509776 = 1300671^2 + 647924^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111550560017 - 2¹⁹ = 2111550035729 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111550560087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055775280008 + 1055775280009.

It is an arithmetic number, because the mean of its divisors is an integer number (1055775280009).

Almost surely, 2^{2111550560017} is an apocalyptic number.

It is an amenable number.

2111550560017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111550560017 is an equidigital number, since it uses as much as digits as its factorization.

2111550560017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 34.

The spelling of 2111550560017 in words is "two trillion, one hundred eleven billion, five hundred fifty million, five hundred sixty thousand, seventeen".