13066223544 has 192 divisors, whose sum is σ = 41328144000. Its totient is φ = 3687240960.

The previous prime is 13066223531. The next prime is 13066223587. The reversal of 13066223544 is 44532266031.

13066223544 is a `hidden beast` number, since 1 + 30 + 6 + 62 + 23 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13066223499 and 13066223508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 880474 + ... + 895190.

It is an arithmetic number, because the mean of its divisors is an integer number (215250750).

Almost surely, 2^13066223544 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 13066223544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20664072000).

13066223544 is an abundant number, since it is smaller than the sum of its proper divisors (28261920456).

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

13066223544 is a wasteful number, since it uses less digits than its factorization.

13066223544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14818 (or 14811 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 13066223544 its reverse (44532266031), we get a palindrome (57598489575).

The spelling of 13066223544 in words is "thirteen billion, sixty-six million, two hundred twenty-three thousand, five hundred forty-four".