11006520845 has 4 divisors (see below), whose sum is σ = 13207825020. Its totient is φ = 8805216672.

The previous prime is 11006520827. The next prime is 11006520857. The reversal of 11006520845 is 54802560011.

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 1184323396 + 9822197449 = 34414^2 + 99107^2 .

It is a cyclic number.

It is not a de Polignac number, because 11006520845 - 2¹⁶ = 11006455309 is a prime.

It is a super-2 number, since 2×11006520845² (a number of 21 digits) contains 22 as substring.

It is a congruent 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, 1100652080 + ... + 1100652089.

It is an arithmetic number, because the mean of its divisors is an integer number (3301956255).

Almost surely, 2^11006520845 is an apocalyptic number.

It is an amenable number.

11006520845 is a deficient number, since it is larger than the sum of its proper divisors (2201304175).

11006520845 is an equidigital number, since it uses as much as digits as its factorization.

11006520845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201304174.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 11006520845 in words is "eleven billion, six million, five hundred twenty thousand, eight hundred forty-five".