11043053440 has 64 divisors (see below), whose sum is σ = 26568192960. Its totient is φ = 4389046272.

The previous prime is 11043053429. The next prime is 11043053459. The reversal of 11043053440 is 4435034011.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45529 + ... + 155431.

It is an arithmetic number, because the mean of its divisors is an integer number (415128015).

Almost surely, 2^11043053440 is an apocalyptic number.

11043053440 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 11043053440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13284096480).

11043053440 is an abundant number, since it is smaller than the sum of its proper divisors (15525139520).

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

11043053440 is a wasteful number, since it uses less digits than its factorization.

11043053440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110079 (or 110067 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 11043053440 its reverse (4435034011), we get a palindrome (15478087451).

The spelling of 11043053440 in words is "eleven billion, forty-three million, fifty-three thousand, four hundred forty".