11530533040 has 160 divisors (see below), whose sum is σ = 30574918080. Its totient is φ = 4008849408.

The previous prime is 11530533019. The next prime is 11530533043. The reversal of 11530533040 is 4033503511.

It is a junction number, because it is equal to n+sod(n) for n = 11530532996 and 11530533014.

It is not an unprimeable number, because it can be changed into a prime (11530533043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3416794 + ... + 3420166.

It is an arithmetic number, because the mean of its divisors is an integer number (191093238).

Almost surely, 2^11530533040 is an apocalyptic number.

11530533040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11530533040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15287459040).

11530533040 is an abundant number, since it is smaller than the sum of its proper divisors (19044385040).

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

11530533040 is a wasteful number, since it uses less digits than its factorization.

11530533040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591 (or 3585 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The spelling of 11530533040 in words is "eleven billion, five hundred thirty million, five hundred thirty-three thousand, forty".