11544855822 has 72 divisors (see below), whose sum is σ = 26651323296. Its totient is φ = 3611080704.

The previous prime is 11544855821. The next prime is 11544855823. The reversal of 11544855822 is 22855844511.

11544855822 is a `hidden beast` number, since 1 + 1 + 54 + 48 + 558 + 2 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (11544855821) and next prime (11544855823).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11544855821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1833163 + ... + 1839449.

It is an arithmetic number, because the mean of its divisors is an integer number (370157268).

Almost surely, 2^11544855822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11544855822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13325661648).

11544855822 is an abundant number, since it is smaller than the sum of its proper divisors (15106467474).

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

11544855822 is a wasteful number, since it uses less digits than its factorization.

11544855822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6682 (or 6662 counting only the distinct ones).

The product of its digits is 512000, while the sum is 45.

The spelling of 11544855822 in words is "eleven billion, five hundred forty-four million, eight hundred fifty-five thousand, eight hundred twenty-two".