11050005561720 has 64 divisors (see below), whose sum is σ = 35100017673120. Its totient is φ = 2773334728704.

The previous prime is 11050005561713. The next prime is 11050005561731. The reversal of 11050005561720 is 2716550005011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2708332657 + ... + 2708336736.

Almost surely, 2^{11050005561720} is an apocalyptic number.

11050005561720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11050005561720 is an abundant number, since it is smaller than the sum of its proper divisors (24050012111400).

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

11050005561720 is a wasteful number, since it uses less digits than its factorization.

11050005561720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5416669424 (or 5416669420 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 33.

Adding to 11050005561720 its reverse (2716550005011), we get a palindrome (13766555566731).

The spelling of 11050005561720 in words is "eleven trillion, fifty billion, five million, five hundred sixty-one thousand, seven hundred twenty".