11115555150 has 96 divisors (see below), whose sum is σ = 31668473088. Its totient is φ = 2527488000.

The previous prime is 11115555137. The next prime is 11115555181. The reversal of 11115555150 is 5155551111.

It is a happy number.

11115555150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 175225 + ... + 230075.

It is an arithmetic number, because the mean of its divisors is an integer number (329879928).

Almost surely, 2^11115555150 is an apocalyptic number.

11115555150 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 11115555150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15834236544).

11115555150 is an abundant number, since it is smaller than the sum of its proper divisors (20552917938).

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

11115555150 is a wasteful number, since it uses less digits than its factorization.

11115555150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55066 (or 55061 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 30.

The spelling of 11115555150 in words is "eleven billion, one hundred fifteen million, five hundred fifty-five thousand, one hundred fifty".