225504663347868 has 24 divisors (see below), whose sum is σ = 527551379539968. Its totient is φ = 74971959440496.

The previous prime is 225504663347863. The next prime is 225504663347869. The reversal of 225504663347868 is 868743366405522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225504663347863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24532704646 + ... + 24532713837.

It is an arithmetic number, because the mean of its divisors is an integer number (21981307480832).

Almost surely, 2^{225504663347868} is an apocalyptic number.

It is an amenable number.

225504663347868 is an abundant number, since it is smaller than the sum of its proper divisors (302046716192100).

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

225504663347868 is a wasteful number, since it uses less digits than its factorization.

225504663347868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49065418873 (or 49065418871 counting only the distinct ones).

The product of its (nonzero) digits is 1393459200, while the sum is 69.

The spelling of 225504663347868 in words is "two hundred twenty-five trillion, five hundred four billion, six hundred sixty-three million, three hundred forty-seven thousand, eight hundred sixty-eight".