11530561344 has 28 divisors (see below), whose sum is σ = 30507944064. Its totient is φ = 3843520384.

The previous prime is 11530561307. The next prime is 11530561349. The reversal of 11530561344 is 44316503511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11530561349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30027312 + ... + 30027695.

Almost surely, 2^11530561344 is an apocalyptic number.

It is an amenable number.

11530561344 is an abundant number, since it is smaller than the sum of its proper divisors (18977382720).

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

11530561344 is an equidigital number, since it uses as much as digits as its factorization.

11530561344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60055022 (or 60055012 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 11530561344 in words is "eleven billion, five hundred thirty million, five hundred sixty-one thousand, three hundred forty-four".