11115242544 has 80 divisors (see below), whose sum is σ = 32858396928. Its totient is φ = 3171722496.

The previous prime is 11115242527. The next prime is 11115242587. The reversal of 11115242544 is 44524251111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247039 + ... + 288545.

Almost surely, 2^11115242544 is an apocalyptic number.

11115242544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11115242544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16429198464).

11115242544 is an abundant number, since it is smaller than the sum of its proper divisors (21743154384).

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

11115242544 is a wasteful number, since it uses less digits than its factorization.

11115242544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42322 (or 42316 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

Adding to 11115242544 its reverse (44524251111), we get a palindrome (55639493655).

The spelling of 11115242544 in words is "eleven billion, one hundred fifteen million, two hundred forty-two thousand, five hundred forty-four".