11543312552 has 16 divisors (see below), whose sum is σ = 21998526900. Its totient is φ = 5677038720.

The previous prime is 11543312527. The next prime is 11543312567. The reversal of 11543312552 is 25521334511.

It can be written as a sum of positive squares in 2 ways, for example, as 11275466596 + 267845956 = 106186^2 + 16366^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11826677 + ... + 11827652.

Almost surely, 2^11543312552 is an apocalyptic number.

It is an amenable number.

11543312552 is a deficient number, since it is larger than the sum of its proper divisors (10455214348).

11543312552 is a wasteful number, since it uses less digits than its factorization.

11543312552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23654396 (or 23654392 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The spelling of 11543312552 in words is "eleven billion, five hundred forty-three million, three hundred twelve thousand, five hundred fifty-two".