11133494544 has 80 divisors (see below), whose sum is σ = 29409367680. Its totient is φ = 3628308480.

The previous prime is 11133494539. The next prime is 11133494573. The reversal of 11133494544 is 44549433111.

It is a super-2 number, since 2×11133494544² (a number of 21 digits) contains 22 as substring.

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, 477592 + ... + 500360.

It is an arithmetic number, because the mean of its divisors is an integer number (367617096).

Almost surely, 2^11133494544 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 11133494544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14704683840).

11133494544 is an abundant number, since it is smaller than the sum of its proper divisors (18275873136).

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

11133494544 is a wasteful number, since it uses less digits than its factorization.

11133494544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23008 (or 23002 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The spelling of 11133494544 in words is "eleven billion, one hundred thirty-three million, four hundred ninety-four thousand, five hundred forty-four".