11045611405 has 4 divisors (see below), whose sum is σ = 13254733692. Its totient is φ = 8836489120.

The previous prime is 11045611403. The next prime is 11045611459. The reversal of 11045611405 is 50411654011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50411654011 = 107339 ⋅469649.

It can be written as a sum of positive squares in 2 ways, for example, as 4412812041 + 6632799364 = 66429^2 + 81442^2 .

It is not a de Polignac number, because 11045611405 - 2¹ = 11045611403 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 (11045611403) 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, 1104561136 + ... + 1104561145.

It is an arithmetic number, because the mean of its divisors is an integer number (3313683423).

Almost surely, 2^11045611405 is an apocalyptic number.

It is an amenable number.

11045611405 is a deficient number, since it is larger than the sum of its proper divisors (2209122287).

11045611405 is an equidigital number, since it uses as much as digits as its factorization.

11045611405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209122286.

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 11045611405 in words is "eleven billion, forty-five million, six hundred eleven thousand, four hundred five".