663244008 has 256 divisors, whose sum is σ = 2101248000. Its totient is φ = 173859840.

The previous prime is 663243991. The next prime is 663244051. The reversal of 663244008 is 800442366.

It is a super-2 number, since 2×663244008² = 879785228295808128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 663244008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5869360 + ... + 5869472.

It is an arithmetic number, because the mean of its divisors is an integer number (8208000).

Almost surely, 2^663244008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663244008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050624000).

663244008 is an abundant number, since it is smaller than the sum of its proper divisors (1438003992).

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

663244008 is a wasteful number, since it uses less digits than its factorization.

663244008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 663244008 is about 25753.5241860216. The cubic root of 663244008 is about 872.0829151300.

The spelling of 663244008 in words is "six hundred sixty-three million, two hundred forty-four thousand, eight".