11326541520 has 320 divisors, whose sum is σ = 41068800000. Its totient is φ = 2528851968.

The previous prime is 11326541509. The next prime is 11326541557. The reversal of 11326541520 is 2514562311.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22698231 + ... + 22698729.

It is an arithmetic number, because the mean of its divisors is an integer number (128340000).

Almost surely, 2^11326541520 is an apocalyptic number.

11326541520 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 11326541520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20534400000).

11326541520 is an abundant number, since it is smaller than the sum of its proper divisors (29742258480).

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

11326541520 is a wasteful number, since it uses less digits than its factorization.

11326541520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 11326541520 in words is "eleven billion, three hundred twenty-six million, five hundred forty-one thousand, five hundred twenty".