11118593640 has 256 divisors, whose sum is σ = 44033310720. Its totient is φ = 2174423040.

The previous prime is 11118593621. The next prime is 11118593659. The reversal of 11118593640 is 4639581111.

It is an interprime number because it is at equal distance from previous prime (11118593621) and next prime (11118593659).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121689 + ... + 192471.

It is an arithmetic number, because the mean of its divisors is an integer number (172005120).

Almost surely, 2^11118593640 is an apocalyptic number.

11118593640 is a gapful number since it is divisible by the number (10) 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 11118593640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22016655360).

11118593640 is an abundant number, since it is smaller than the sum of its proper divisors (32914717080).

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

11118593640 is a wasteful number, since it uses less digits than its factorization.

11118593640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70832 (or 70828 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The spelling of 11118593640 in words is "eleven billion, one hundred eighteen million, five hundred ninety-three thousand, six hundred forty".