11055543040 has 144 divisors (see below), whose sum is σ = 27276705792. Its totient is φ = 4291080192.

The previous prime is 11055543011. The next prime is 11055543041. The reversal of 11055543040 is 4034555011.

It is not an unprimeable number, because it can be changed into a prime (11055543041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7639597 + ... + 7641043.

It is an arithmetic number, because the mean of its divisors is an integer number (189421568).

Almost surely, 2^11055543040 is an apocalyptic number.

11055543040 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 11055543040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13638352896).

11055543040 is an abundant number, since it is smaller than the sum of its proper divisors (16221162752).

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

11055543040 is a wasteful number, since it uses less digits than its factorization.

11055543040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 11055543040 in words is "eleven billion, fifty-five million, five hundred forty-three thousand, forty".