663674174244 has 45 divisors (see below), whose sum is σ = 1735013722827. Its totient is φ = 221219836776.

The previous prime is 663674174239. The next prime is 663674174363. The reversal of 663674174244 is 442471476366.

The square root of 663674174244 is 814662.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 14641287 + ... + 14686545.

Almost surely, 2^663674174244 is an apocalyptic number.

663674174244 is the 814662-nd square number.

It is an amenable number.

663674174244 is an abundant number, since it is smaller than the sum of its proper divisors (1071339548583).

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

663674174244 is an frugal number, since it uses more digits than its factorization.

663674174244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90534 (or 45264 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 54.

The spelling of 663674174244 in words is "six hundred sixty-three billion, six hundred seventy-four million, one hundred seventy-four thousand, two hundred forty-four".