11328620544 has 72 divisors (see below), whose sum is σ = 32719189230. Its totient is φ = 3776200704.

The previous prime is 11328620543. The next prime is 11328620561. The reversal of 11328620544 is 44502682311.

It is a happy number.

11328620544 is a `hidden beast` number, since 1 + 1 + 3 + 28 + 620 + 5 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9160786944 + 2167833600 = 95712^2 + 46560^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11328620499 and 11328620508.

It is not an unprimeable number, because it can be changed into a prime (11328620543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 288877 + ... + 325740.

Almost surely, 2^11328620544 is an apocalyptic number.

It is an amenable number.

11328620544 is an abundant number, since it is smaller than the sum of its proper divisors (21390568686).

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

11328620544 is an equidigital number, since it uses as much as digits as its factorization.

11328620544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614645 (or 614622 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 11328620544 in words is "eleven billion, three hundred twenty-eight million, six hundred twenty thousand, five hundred forty-four".