161116165060811 has 2 divisors, whose sum is σ = 161116165060812. Its totient is φ = 161116165060810.

The previous prime is 161116165060769. The next prime is 161116165060831. The reversal of 161116165060811 is 118060561611161.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161116165060811 is a prime.

It is a super-3 number, since 3×161116165060811³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (161116165060831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80558082530405 + 80558082530406.

It is an arithmetic number, because the mean of its divisors is an integer number (80558082530406).

Almost surely, 2^{161116165060811} is an apocalyptic number.

161116165060811 is a deficient number, since it is larger than the sum of its proper divisors (1).

161116165060811 is an equidigital number, since it uses as much as digits as its factorization.

161116165060811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 44.

The spelling of 161116165060811 in words is "one hundred sixty-one trillion, one hundred sixteen billion, one hundred sixty-five million, sixty thousand, eight hundred eleven".