13663185228 has 144 divisors (see below), whose sum is σ = 45326211840. Its totient is φ = 3362083200.

The previous prime is 13663185227. The next prime is 13663185253. The reversal of 13663185228 is 82258136631.

13663185228 is a `hidden beast` number, since 1 + 3 + 6 + 631 + 8 + 5 + 2 + 2 + 8 = 666.

13663185228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13663185227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77043 + ... + 182378.

It is an arithmetic number, because the mean of its divisors is an integer number (314765360).

Almost surely, 2^13663185228 is an apocalyptic number.

13663185228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13663185228 is an abundant number, since it is smaller than the sum of its proper divisors (31663026612).

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

13663185228 is a wasteful number, since it uses less digits than its factorization.

13663185228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259468 (or 259463 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

It can be divided in two parts, 13663 and 185228, that added together give a palindrome (198891).

The spelling of 13663185228 in words is "thirteen billion, six hundred sixty-three million, one hundred eighty-five thousand, two hundred twenty-eight".