11005323671161 has 4 divisors (see below), whose sum is σ = 11212971287652. Its totient is φ = 10797676054672.

The previous prime is 11005323671123. The next prime is 11005323671171. The reversal of 11005323671161 is 16117632350011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6860109110761 + 4145214560400 = 2619181^2 + 2035980^2 .

It is a cyclic number.

It is not a de Polignac number, because 11005323671161 - 2³⁵ = 10970963932793 is a prime.

It is a super-2 number, since 2×11005323671161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11005323671161.

It is not an unprimeable number, because it can be changed into a prime (11005323671171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103823808166 + ... + 103823808271.

It is an arithmetic number, because the mean of its divisors is an integer number (2803242821913).

Almost surely, 2^{11005323671161} is an apocalyptic number.

It is an amenable number.

11005323671161 is a deficient number, since it is larger than the sum of its proper divisors (207647616491).

11005323671161 is an equidigital number, since it uses as much as digits as its factorization.

11005323671161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207647616490.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 11005323671161 in words is "eleven trillion, five billion, three hundred twenty-three million, six hundred seventy-one thousand, one hundred sixty-one".