2116563473 has 2 divisors, whose sum is σ = 2116563474. Its totient is φ = 2116563472.

The previous prime is 2116563437. The next prime is 2116563481. The reversal of 2116563473 is 3743656112.

Together with previous prime (2116563437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1243479169 + 873084304 = 35263^2 + 29548^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116563473 - 2⁸ = 2116563217 is a prime.

It is not a weakly prime, because it can be changed into another prime (2116563073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058281736 + 1058281737.

It is an arithmetic number, because the mean of its divisors is an integer number (1058281737).

Almost surely, 2^2116563473 is an apocalyptic number.

It is an amenable number.

2116563473 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116563473 is an equidigital number, since it uses as much as digits as its factorization.

2116563473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 2116563473 is about 46006.1242988366. The cubic root of 2116563473 is about 1283.9371515920.

The spelling of 2116563473 in words is "two billion, one hundred sixteen million, five hundred sixty-three thousand, four hundred seventy-three".