11543566254 has 24 divisors (see below), whose sum is σ = 25376767080. Its totient is φ = 3498050160.

The previous prime is 11543566231. The next prime is 11543566283. The reversal of 11543566254 is 45266534511.

11543566254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7949389 + ... + 7950840.

It is an arithmetic number, because the mean of its divisors is an integer number (1057365295).

Almost surely, 2^11543566254 is an apocalyptic number.

11543566254 is an abundant number, since it is smaller than the sum of its proper divisors (13833200826).

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

11543566254 is a wasteful number, since it uses less digits than its factorization.

11543566254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15900256 (or 15900245 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The spelling of 11543566254 in words is "eleven billion, five hundred forty-three million, five hundred sixty-six thousand, two hundred fifty-four".