11142543552 has 84 divisors (see below), whose sum is σ = 34294617720. Its totient is φ = 3183581184.

The previous prime is 11142543527. The next prime is 11142543571. The reversal of 11142543552 is 25534524111.

It is a tau number, because it is divible by the number of its divisors (84).

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 11 ways as a sum of consecutive naturals, for example, 582777 + ... + 601592.

Almost surely, 2^11142543552 is an apocalyptic number.

11142543552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11142543552 is an abundant number, since it is smaller than the sum of its proper divisors (23152074168).

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

11142543552 is a wasteful number, since it uses less digits than its factorization.

11142543552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184398 (or 1184381 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The spelling of 11142543552 in words is "eleven billion, one hundred forty-two million, five hundred forty-three thousand, five hundred fifty-two".