11543605131544 has 32 divisors (see below), whose sum is σ = 21700314396000. Its totient is φ = 5756872988160.

The previous prime is 11543605131533. The next prime is 11543605131547. The reversal of 11543605131544 is 44513150634511.

It is a self number, because there is not a number n which added to its sum of digits gives 11543605131544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543605131547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3886032 + ... + 6179680.

It is an arithmetic number, because the mean of its divisors is an integer number (678134824875).

Almost surely, 2^{11543605131544} is an apocalyptic number.

It is an amenable number.

11543605131544 is a deficient number, since it is larger than the sum of its proper divisors (10156709264456).

11543605131544 is a wasteful number, since it uses less digits than its factorization.

11543605131544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295283 (or 2295279 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 11543605131544 in words is "eleven trillion, five hundred forty-three billion, six hundred five million, one hundred thirty-one thousand, five hundred forty-four".