11543224656 has 40 divisors (see below), whose sum is σ = 29915307520. Its totient is φ = 3835443456.

The previous prime is 11543224643. The next prime is 11543224657. The reversal of 11543224656 is 65642234511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543224657) 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, 369136 + ... + 399183.

It is an arithmetic number, because the mean of its divisors is an integer number (747882688).

Almost surely, 2^11543224656 is an apocalyptic number.

11543224656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11543224656 is an abundant number, since it is smaller than the sum of its proper divisors (18372082864).

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

11543224656 is a wasteful number, since it uses less digits than its factorization.

11543224656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768643 (or 768637 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The spelling of 11543224656 in words is "eleven billion, five hundred forty-three million, two hundred twenty-four thousand, six hundred fifty-six".