11265645213 has 32 divisors (see below), whose sum is σ = 17061649920. Its totient is φ = 7343432640.

The previous prime is 11265645197. The next prime is 11265645233. The reversal of 11265645213 is 31254656211.

11265645213 is a `hidden beast` number, since 1 + 1 + 2 + 6 + 5 + 645 + 2 + 1 + 3 = 666.

It is not a de Polignac number, because 11265645213 - 2⁴ = 11265645197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11265645233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1494931 + ... + 1502447.

It is an arithmetic number, because the mean of its divisors is an integer number (533176560).

Almost surely, 2^11265645213 is an apocalyptic number.

It is an amenable number.

11265645213 is a deficient number, since it is larger than the sum of its proper divisors (5796004707).

11265645213 is a wasteful number, since it uses less digits than its factorization.

11265645213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8754 (or 8748 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The spelling of 11265645213 in words is "eleven billion, two hundred sixty-five million, six hundred forty-five thousand, two hundred thirteen".