11324681550 has 432 divisors, whose sum is σ = 39346566480. Its totient is φ = 2387024640.

The previous prime is 11324681527. The next prime is 11324681609. The reversal of 11324681550 is 5518642311.

11324681550 is a `hidden beast` number, since 1 + 1 + 3 + 24 + 6 + 81 + 550 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 11178844 + ... + 11179856.

It is an arithmetic number, because the mean of its divisors is an integer number (91080015).

Almost surely, 2^11324681550 is an apocalyptic number.

11324681550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11324681550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19673283240).

11324681550 is an abundant number, since it is smaller than the sum of its proper divisors (28021884930).

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

11324681550 is a wasteful number, since it uses less digits than its factorization.

11324681550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 11324681550 in words is "eleven billion, three hundred twenty-four million, six hundred eighty-one thousand, five hundred fifty".