13014223656 has 128 divisors (see below), whose sum is σ = 39501665280. Its totient is φ = 3487988736.

The previous prime is 13014223543. The next prime is 13014223697. The reversal of 13014223656 is 65632241031.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 869371 + ... + 884213.

It is an arithmetic number, because the mean of its divisors is an integer number (308606760).

Almost surely, 2^13014223656 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 13014223656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19750832640).

13014223656 is an abundant number, since it is smaller than the sum of its proper divisors (26487441624).

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

13014223656 is a wasteful number, since it uses less digits than its factorization.

13014223656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15183 (or 15179 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 13014223656 its reverse (65632241031), we get a palindrome (78646464687).

The spelling of 13014223656 in words is "thirteen billion, fourteen million, two hundred twenty-three thousand, six hundred fifty-six".