11240565534 has 80 divisors (see below), whose sum is σ = 27527550336. Its totient is φ = 3399958800.

The previous prime is 11240565533. The next prime is 11240565551. The reversal of 11240565534 is 43556504211.

11240565534 is a `hidden beast` number, since 1 + 1 + 2 + 40 + 565 + 53 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11240565533) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1011999 + ... + 1023045.

Almost surely, 2^11240565534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11240565534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13763775168).

11240565534 is an abundant number, since it is smaller than the sum of its proper divisors (16286984802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11240565534 is a wasteful number, since it uses less digits than its factorization.

11240565534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11643 (or 11634 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 11240565534 in words is "eleven billion, two hundred forty million, five hundred sixty-five thousand, five hundred thirty-four".