11801189568 has 224 divisors, whose sum is σ = 36321366016. Its totient is φ = 3312202752.

The previous prime is 11801189549. The next prime is 11801189597. The reversal of 11801189568 is 86598110811.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22564155 + ... + 22564677.

Almost surely, 2^11801189568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11801189568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18160683008).

11801189568 is an abundant number, since it is smaller than the sum of its proper divisors (24520176448).

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

11801189568 is a wasteful number, since it uses less digits than its factorization.

11801189568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 48.

The spelling of 11801189568 in words is "eleven billion, eight hundred one million, one hundred eighty-nine thousand, five hundred sixty-eight".