11045220450 has 192 divisors, whose sum is σ = 31955668992. Its totient is φ = 2495001600.

The previous prime is 11045220437. The next prime is 11045220469. The reversal of 11045220450 is 5402254011.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11045220450.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 2887239 + ... + 2891061.

It is an arithmetic number, because the mean of its divisors is an integer number (166435776).

Almost surely, 2^11045220450 is an apocalyptic number.

11045220450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11045220450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15977834496).

11045220450 is an abundant number, since it is smaller than the sum of its proper divisors (20910448542).

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

11045220450 is a wasteful number, since it uses less digits than its factorization.

11045220450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969 (or 3964 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 11045220450 its reverse (5402254011), we get a palindrome (16447474461).

The spelling of 11045220450 in words is "eleven billion, forty-five million, two hundred twenty thousand, four hundred fifty".