11144322156 has 72 divisors (see below), whose sum is σ = 28754046720. Its totient is φ = 3356772320.

The previous prime is 11144322121. The next prime is 11144322173. The reversal of 11144322156 is 65122344111.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219505 + ... + 265463.

It is an arithmetic number, because the mean of its divisors is an integer number (399361760).

Almost surely, 2^11144322156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11144322156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14377023360).

11144322156 is an abundant number, since it is smaller than the sum of its proper divisors (17609724564).

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

11144322156 is a wasteful number, since it uses less digits than its factorization.

11144322156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46155 (or 46142 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

Adding to 11144322156 its reverse (65122344111), we get a palindrome (76266666267).

It can be divided in two parts, 1114 and 4322156, that added together give a triangular number (4323270 = T₂₉₄₀).

The spelling of 11144322156 in words is "eleven billion, one hundred forty-four million, three hundred twenty-two thousand, one hundred fifty-six".