11505540150 has 144 divisors (see below), whose sum is σ = 33491543904. Its totient is φ = 2814935040.

The previous prime is 11505540103. The next prime is 11505540199. The reversal of 11505540150 is 5104550511.

11505540150 is a `hidden beast` number, since 1 + 1 + 505 + 5 + 4 + 0 + 150 = 666.

11505540150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 971062 + ... + 982838.

It is an arithmetic number, because the mean of its divisors is an integer number (232580166).

Almost surely, 2^11505540150 is an apocalyptic number.

11505540150 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 11505540150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16745771952).

11505540150 is an abundant number, since it is smaller than the sum of its proper divisors (21986003754).

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

11505540150 is a wasteful number, since it uses less digits than its factorization.

11505540150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11975 (or 11967 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The spelling of 11505540150 in words is "eleven billion, five hundred five million, five hundred forty thousand, one hundred fifty".