11173504144 has 60 divisors (see below), whose sum is σ = 24688388592. Its totient is φ = 4858004800.

The previous prime is 11173504141. The next prime is 11173504159. The reversal of 11173504144 is 44140537111.

It is not an unprimeable number, because it can be changed into a prime (11173504141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33099 + ... + 153109.

Almost surely, 2^11173504144 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 11173504144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12344194296).

11173504144 is an abundant number, since it is smaller than the sum of its proper divisors (13514884448).

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

11173504144 is a wasteful number, since it uses less digits than its factorization.

11173504144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120076 (or 120047 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The spelling of 11173504144 in words is "eleven billion, one hundred seventy-three million, five hundred four thousand, one hundred forty-four".