11562020272 has 80 divisors (see below), whose sum is σ = 24777342720. Its totient is φ = 5182905600.

The previous prime is 11562020269. The next prime is 11562020287. The reversal of 11562020272 is 27202026511.

It is a self number, because there is not a number n which added to its sum of digits gives 11562020272.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4875247 + ... + 4877617.

It is an arithmetic number, because the mean of its divisors is an integer number (309716784).

Almost surely, 2^11562020272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11562020272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12388671360).

11562020272 is an abundant number, since it is smaller than the sum of its proper divisors (13215322448).

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

11562020272 is a wasteful number, since it uses less digits than its factorization.

11562020272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762 (or 2756 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 11562020272 its reverse (27202026511), we get a palindrome (38764046783).

The spelling of 11562020272 in words is "eleven billion, five hundred sixty-two million, twenty thousand, two hundred seventy-two".