663016612 has 12 divisors (see below), whose sum is σ = 1161698076. Its totient is φ = 331102880.

The previous prime is 663016583. The next prime is 663016661. The reversal of 663016612 is 216610366.

It can be written as a sum of positive squares in 2 ways, for example, as 97337956 + 565678656 = 9866^2 + 23784^2 .

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 3 ways as a sum of consecutive naturals, for example, 97663 + ... + 104230.

It is an arithmetic number, because the mean of its divisors is an integer number (96808173).

Almost surely, 2^663016612 is an apocalyptic number.

It is an amenable number.

663016612 is a deficient number, since it is larger than the sum of its proper divisors (498681464).

663016612 is a wasteful number, since it uses less digits than its factorization.

663016612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202718 (or 202716 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 663016612 is about 25749.1089554571. The cubic root of 663016612 is about 871.9832379714.

Adding to 663016612 its reverse (216610366), we get a palindrome (879626978).

The spelling of 663016612 in words is "six hundred sixty-three million, sixteen thousand, six hundred twelve".