11533014520 has 64 divisors (see below), whose sum is σ = 26575607520. Its totient is φ = 4502045184.

The previous prime is 11533014511. The next prime is 11533014539. The reversal of 11533014520 is 2541033511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2772282 + ... + 2776438.

Almost surely, 2^11533014520 is an apocalyptic number.

11533014520 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 11533014520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13287803760).

11533014520 is an abundant number, since it is smaller than the sum of its proper divisors (15042593000).

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

11533014520 is a wasteful number, since it uses less digits than its factorization.

11533014520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824 (or 5820 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 11533014520 in words is "eleven billion, five hundred thirty-three million, fourteen thousand, five hundred twenty".