2116710505447 has 2 divisors, whose sum is σ = 2116710505448. Its totient is φ = 2116710505446.

The previous prime is 2116710505411. The next prime is 2116710505471. The reversal of 2116710505447 is 7445050176112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2116710505447 - 2²⁷ = 2116576287719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116710505477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058355252723 + 1058355252724.

It is an arithmetic number, because the mean of its divisors is an integer number (1058355252724).

Almost surely, 2^{2116710505447} is an apocalyptic number.

2116710505447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116710505447 is an equidigital number, since it uses as much as digits as its factorization.

2116710505447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 2116710505447 in words is "two trillion, one hundred sixteen billion, seven hundred ten million, five hundred five thousand, four hundred forty-seven".