11169139968 has 648 divisors, whose sum is σ = 40712555520. Its totient is φ = 2926264320.

The previous prime is 11169139967. The next prime is 11169139991. The reversal of 11169139968 is 86993196111.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11169139967) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 87945921 + ... + 87946047.

Almost surely, 2^11169139968 is an apocalyptic number.

11169139968 is a gapful number since it is divisible by the number (18) 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 11169139968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20356277760).

11169139968 is an abundant number, since it is smaller than the sum of its proper divisors (29543415552).

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

11169139968 is a wasteful number, since it uses less digits than its factorization.

11169139968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 199 counting only the distinct ones).

The product of its digits is 629856, while the sum is 54.

The spelling of 11169139968 in words is "eleven billion, one hundred sixty-nine million, one hundred thirty-nine thousand, nine hundred sixty-eight".