663329516 has 6 divisors (see below), whose sum is σ = 1160826660. Its totient is φ = 331664756.

The previous prime is 663329483. The next prime is 663329531. The reversal of 663329516 is 615923366.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82916186 + ... + 82916193.

It is an arithmetic number, because the mean of its divisors is an integer number (193471110).

Almost surely, 2^663329516 is an apocalyptic number.

It is an amenable number.

663329516 is a deficient number, since it is larger than the sum of its proper divisors (497497144).

663329516 is a wasteful number, since it uses less digits than its factorization.

663329516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165832383 (or 165832381 counting only the distinct ones).

The product of its digits is 174960, while the sum is 41.

The square root of 663329516 is about 25755.1842548253. The cubic root of 663329516 is about 872.1203909612.

The spelling of 663329516 in words is "six hundred sixty-three million, three hundred twenty-nine thousand, five hundred sixteen".