11118388840 has 64 divisors (see below), whose sum is σ = 28358668800. Its totient is φ = 3889181952.

The previous prime is 11118388829. The next prime is 11118388861. The reversal of 11118388840 is 4888381111.

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, 552792 + ... + 572551.

It is an arithmetic number, because the mean of its divisors is an integer number (443104200).

Almost surely, 2^11118388840 is an apocalyptic number.

11118388840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11118388840 is an abundant number, since it is smaller than the sum of its proper divisors (17240279960).

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

11118388840 is a wasteful number, since it uses less digits than its factorization.

11118388840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125386 (or 1125382 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 43.

The spelling of 11118388840 in words is "eleven billion, one hundred eighteen million, three hundred eighty-eight thousand, eight hundred forty".