13110223644 has 72 divisors (see below), whose sum is σ = 37936211040. Its totient is φ = 3739623552.

The previous prime is 13110223619. The next prime is 13110223661. The reversal of 13110223644 is 44632201131.

It is a happy number.

13110223644 is a `hidden beast` number, since 1 + 3 + 1 + 10 + 2 + 2 + 3 + 644 = 666.

It is a congruent number.

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, 112042 + ... + 196910.

It is an arithmetic number, because the mean of its divisors is an integer number (526891820).

Almost surely, 2^13110223644 is an apocalyptic number.

13110223644 is a gapful number since it is divisible by the number (14) 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 13110223644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18968105520).

13110223644 is an abundant number, since it is smaller than the sum of its proper divisors (24825987396).

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

13110223644 is a wasteful number, since it uses less digits than its factorization.

13110223644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85499 (or 85494 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 13110223644 its reverse (44632201131), we get a palindrome (57742424775).

The spelling of 13110223644 in words is "thirteen billion, one hundred ten million, two hundred twenty-three thousand, six hundred forty-four".