11534040544240 has 40 divisors (see below), whose sum is σ = 27541418441760. Its totient is φ = 4488923886336.

The previous prime is 11534040544207. The next prime is 11534040544309. The reversal of 11534040544240 is 4244504043511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 11534040544240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948314700 + ... + 1948320619.

It is an arithmetic number, because the mean of its divisors is an integer number (688535461044).

Almost surely, 2^{11534040544240} is an apocalyptic number.

11534040544240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11534040544240 is an abundant number, since it is smaller than the sum of its proper divisors (16007377897520).

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

11534040544240 is a wasteful number, since it uses less digits than its factorization.

11534040544240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896635369 (or 3896635363 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 11534040544240 its reverse (4244504043511), we get a palindrome (15778544587751).

The spelling of 11534040544240 in words is "eleven trillion, five hundred thirty-four billion, forty million, five hundred forty-four thousand, two hundred forty".