11056566720 has 56 divisors (see below), whose sum is σ = 35104602384. Its totient is φ = 2948417536.

The previous prime is 11056566707. The next prime is 11056566721. The reversal of 11056566720 is 2766565011.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11056566721) 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 7 ways as a sum of consecutive naturals, for example, 5757669 + ... + 5759588.

Almost surely, 2^11056566720 is an apocalyptic number.

11056566720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11056566720 is an abundant number, since it is smaller than the sum of its proper divisors (24048035664).

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

11056566720 is a wasteful number, since it uses less digits than its factorization.

11056566720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11517277 (or 11517267 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 11056566720 in words is "eleven billion, fifty-six million, five hundred sixty-six thousand, seven hundred twenty".