11161105705 has 4 divisors (see below), whose sum is σ = 13393326852. Its totient is φ = 8928884560.

The previous prime is 11161105691. The next prime is 11161105751. The reversal of 11161105705 is 50750116111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50750116111 = 139 ⋅365108749.

It can be written as a sum of positive squares in 2 ways, for example, as 7222790169 + 3938315536 = 84987^2 + 62756^2 .

It is not a de Polignac number, because 11161105705 - 2⁵ = 11161105673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1116110566 + ... + 1116110575.

It is an arithmetic number, because the mean of its divisors is an integer number (3348331713).

Almost surely, 2^11161105705 is an apocalyptic number.

It is an amenable number.

11161105705 is a deficient number, since it is larger than the sum of its proper divisors (2232221147).

11161105705 is an equidigital number, since it uses as much as digits as its factorization.

11161105705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232221146.

The product of its (nonzero) digits is 1050, while the sum is 28.

The spelling of 11161105705 in words is "eleven billion, one hundred sixty-one million, one hundred five thousand, seven hundred five".