2116715716187 has 2 divisors, whose sum is σ = 2116715716188. Its totient is φ = 2116715716186.

The previous prime is 2116715716151. The next prime is 2116715716189. The reversal of 2116715716187 is 7816175176112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2116715716187 - 2²⁴ = 2116698938971 is a prime.

Together with 2116715716189, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2116715716189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058357858093 + 1058357858094.

It is an arithmetic number, because the mean of its divisors is an integer number (1058357858094).

Almost surely, 2^{2116715716187} is an apocalyptic number.

2116715716187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116715716187 is an equidigital number, since it uses as much as digits as its factorization.

2116715716187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840, while the sum is 53.

The spelling of 2116715716187 in words is "two trillion, one hundred sixteen billion, seven hundred fifteen million, seven hundred sixteen thousand, one hundred eighty-seven".