13551814344222 has 768 divisors, whose sum is σ = 42067720396800. Its totient is φ = 3182821931520.

The previous prime is 13551814344221. The next prime is 13551814344283. The reversal of 13551814344222 is 22244341815531.

13551814344222 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 1 + 81 + 4 + 344 + 222 = 666.

13551814344222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13551814344222² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13551814344221) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 8178523218 + ... + 8178524874.

It is an arithmetic number, because the mean of its divisors is an integer number (54775677600).

Almost surely, 2^{13551814344222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13551814344222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21033860198400).

13551814344222 is an abundant number, since it is smaller than the sum of its proper divisors (28515906052578).

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

13551814344222 is a wasteful number, since it uses less digits than its factorization.

13551814344222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378 (or 2365 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The spelling of 13551814344222 in words is "thirteen trillion, five hundred fifty-one billion, eight hundred fourteen million, three hundred forty-four thousand, two hundred twenty-two".