11019550332 has 144 divisors (see below), whose sum is σ = 31304931840. Its totient is φ = 2954100864.

The previous prime is 11019550313. The next prime is 11019550337. The reversal of 11019550332 is 23305591011.

It is a self number, because there is not a number n which added to its sum of digits gives 11019550332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11019550337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2352769 + ... + 2357447.

It is an arithmetic number, because the mean of its divisors is an integer number (217395360).

Almost surely, 2^11019550332 is an apocalyptic number.

11019550332 is a gapful number since it is divisible by the number (12) 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 11019550332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15652465920).

11019550332 is an abundant number, since it is smaller than the sum of its proper divisors (20285381508).

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

11019550332 is a wasteful number, since it uses less digits than its factorization.

11019550332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4792 (or 4767 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 30.

The spelling of 11019550332 in words is "eleven billion, nineteen million, five hundred fifty thousand, three hundred thirty-two".