11530559648 has 24 divisors (see below), whose sum is σ = 23072937300. Its totient is φ = 5670766080.

The previous prime is 11530559627. The next prime is 11530559669. The reversal of 11530559648 is 84695503511.

It is an interprime number because it is at equal distance from previous prime (11530559627) and next prime (11530559669).

It can be written as a sum of positive squares in 2 ways, for example, as 9877974544 + 1652585104 = 99388^2 + 40652^2 .

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, 2951573 + ... + 2955476.

Almost surely, 2^11530559648 is an apocalyptic number.

It is an amenable number.

11530559648 is an abundant number, since it is smaller than the sum of its proper divisors (11542377652).

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

11530559648 is an equidigital number, since it uses as much as digits as its factorization.

11530559648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907120 (or 5907112 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 47.

The spelling of 11530559648 in words is "eleven billion, five hundred thirty million, five hundred fifty-nine thousand, six hundred forty-eight".