663226411504168 has 32 divisors (see below), whose sum is σ = 1245810511650600. Its totient is φ = 331010743375872.

The previous prime is 663226411504099. The next prime is 663226411504187. The reversal of 663226411504168 is 861405114622366.

663226411504168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 613135943142724 + 50090468361444 = 24761582^2 + 7077462^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17938053 + ... + 40598356.

Almost surely, 2^{663226411504168} is an apocalyptic number.

It is an amenable number.

663226411504168 is a deficient number, since it is larger than the sum of its proper divisors (582584100146432).

663226411504168 is a wasteful number, since it uses less digits than its factorization.

663226411504168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58538989 (or 58538985 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 55.

The spelling of 663226411504168 in words is "six hundred sixty-three trillion, two hundred twenty-six billion, four hundred eleven million, five hundred four thousand, one hundred sixty-eight".