11217450560720 has 20 divisors (see below), whose sum is σ = 26080572553860. Its totient is φ = 4486980224256.

The previous prime is 11217450560707. The next prime is 11217450560731. The reversal of 11217450560720 is 2706505471211.

It can be written as a sum of positive squares in 2 ways, for example, as 6669058332304 + 4548392228416 = 2582452^2 + 2132696^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70109065925 + ... + 70109066084.

It is an arithmetic number, because the mean of its divisors is an integer number (1304028627693).

Almost surely, 2^{11217450560720} is an apocalyptic number.

11217450560720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11217450560720 is an abundant number, since it is smaller than the sum of its proper divisors (14863121993140).

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

11217450560720 is a wasteful number, since it uses less digits than its factorization.

11217450560720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140218132022 (or 140218132016 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 11217450560720 in words is "eleven trillion, two hundred seventeen billion, four hundred fifty million, five hundred sixty thousand, seven hundred twenty".