11056605271 has 4 divisors (see below), whose sum is σ = 11081791600. Its totient is φ = 11031418944.

The previous prime is 11056605269. The next prime is 11056605281. The reversal of 11056605271 is 17250665011.

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

It is a cyclic number.

It is not a de Polignac number, because 11056605271 - 2¹ = 11056605269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11056605281) 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, 12592506 + ... + 12593383.

It is an arithmetic number, because the mean of its divisors is an integer number (2770447900).

Almost surely, 2^11056605271 is an apocalyptic number.

11056605271 is a deficient number, since it is larger than the sum of its proper divisors (25186329).

11056605271 is an equidigital number, since it uses as much as digits as its factorization.

11056605271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25186328.

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 11056605271 in words is "eleven billion, fifty-six million, six hundred five thousand, two hundred seventy-one".