11055403560 has 128 divisors (see below), whose sum is σ = 35261671680. Its totient is φ = 2766686208.

The previous prime is 11055403553. The next prime is 11055403561. The reversal of 11055403560 is 6530455011.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (11055403561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108492 + ... + 184068.

It is an arithmetic number, because the mean of its divisors is an integer number (275481810).

Almost surely, 2^11055403560 is an apocalyptic number.

11055403560 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 11055403560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17630835840).

11055403560 is an abundant number, since it is smaller than the sum of its proper divisors (24206268120).

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

11055403560 is a wasteful number, since it uses less digits than its factorization.

11055403560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75667 (or 75663 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 11055403560 its reverse (6530455011), we get a palindrome (17585858571).

The spelling of 11055403560 in words is "eleven billion, fifty-five million, four hundred three thousand, five hundred sixty".