2116702161697 has 2 divisors, whose sum is σ = 2116702161698. Its totient is φ = 2116702161696.

The previous prime is 2116702161643. The next prime is 2116702161709. The reversal of 2116702161697 is 7961612076112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1829353631296 + 287348530401 = 1352536^2 + 536049^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116702161697 - 2²⁷ = 2116567943969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2116702161697.

It is not a weakly prime, because it can be changed into another prime (2116702161397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058351080848 + 1058351080849.

It is an arithmetic number, because the mean of its divisors is an integer number (1058351080849).

Almost surely, 2^{2116702161697} is an apocalyptic number.

It is an amenable number.

2116702161697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116702161697 is an equidigital number, since it uses as much as digits as its factorization.

2116702161697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 49.

The spelling of 2116702161697 in words is "two trillion, one hundred sixteen billion, seven hundred two million, one hundred sixty-one thousand, six hundred ninety-seven".