2116645162097 has 2 divisors, whose sum is σ = 2116645162098. Its totient is φ = 2116645162096.

The previous prime is 2116645162091. The next prime is 2116645162157. The reversal of 2116645162097 is 7902615466112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2109709770256 + 6935391841 = 1452484^2 + 83279^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116645162097 - 2²⁸ = 2116376726641 is a prime.

It is not a weakly prime, because it can be changed into another prime (2116645162091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058322581048 + 1058322581049.

It is an arithmetic number, because the mean of its divisors is an integer number (1058322581049).

Almost surely, 2^{2116645162097} is an apocalyptic number.

It is an amenable number.

2116645162097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116645162097 is an equidigital number, since it uses as much as digits as its factorization.

2116645162097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 2116645162097 in words is "two trillion, one hundred sixteen billion, six hundred forty-five million, one hundred sixty-two thousand, ninety-seven".