11143545534 has 96 divisors (see below), whose sum is σ = 26762138208. Its totient is φ = 3323040000.

The previous prime is 11143545487. The next prime is 11143545547. The reversal of 11143545534 is 43554534111.

11143545534 is a `hidden beast` number, since 1 + 11 + 43 + 54 + 553 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3458044 + ... + 3461264.

It is an arithmetic number, because the mean of its divisors is an integer number (278772273).

Almost surely, 2^11143545534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11143545534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13381069104).

11143545534 is an abundant number, since it is smaller than the sum of its proper divisors (15618592674).

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

11143545534 is a wasteful number, since it uses less digits than its factorization.

11143545534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514 (or 3511 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 11143545534 in words is "eleven billion, one hundred forty-three million, five hundred forty-five thousand, five hundred thirty-four".