663216236 has 12 divisors (see below), whose sum is σ = 1160843880. Its totient is φ = 331546560.

The previous prime is 663216209. The next prime is 663216251. The reversal of 663216236 is 632612366.

663216236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 663216196 and 663216205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15935 + ... + 39753.

It is an arithmetic number, because the mean of its divisors is an integer number (96736990).

Almost surely, 2^663216236 is an apocalyptic number.

It is an amenable number.

663216236 is a deficient number, since it is larger than the sum of its proper divisors (497627644).

663216236 is a wasteful number, since it uses less digits than its factorization.

663216236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30784 (or 30782 counting only the distinct ones).

The product of its digits is 46656, while the sum is 35.

The square root of 663216236 is about 25752.9849920354. The cubic root of 663216236 is about 872.0707427246.

It can be divided in two parts, 6632162 and 36, that multiplied together give a palindrome (238757832).

The spelling of 663216236 in words is "six hundred sixty-three million, two hundred sixteen thousand, two hundred thirty-six".