225663366522 has 64 divisors (see below), whose sum is σ = 505904961024. Its totient is φ = 66502866240.

The previous prime is 225663366499. The next prime is 225663366563.

225663366522 is nontrivially palindromic in base 10.

225663366522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 5358753 + ... + 5400699.

It is an arithmetic number, because the mean of its divisors is an integer number (7904765016).

Almost surely, 2^225663366522 is an apocalyptic number.

225663366522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 225663366522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252952480512).

225663366522 is an abundant number, since it is smaller than the sum of its proper divisors (280241594502).

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

225663366522 is a wasteful number, since it uses less digits than its factorization.

225663366522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44203.

The product of its digits is 4665600, while the sum is 48.

The spelling of 225663366522 in words is "two hundred twenty-five billion, six hundred sixty-three million, three hundred sixty-six thousand, five hundred twenty-two".