663412516 has 48 divisors (see below), whose sum is σ = 1288504000. Its totient is φ = 296887680.

The previous prime is 663412481. The next prime is 663412537. The reversal of 663412516 is 615214366.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 959731 + ... + 960421.

Almost surely, 2^663412516 is an apocalyptic number.

It is an amenable number.

663412516 is a deficient number, since it is larger than the sum of its proper divisors (625091484).

663412516 is a wasteful number, since it uses less digits than its factorization.

663412516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1242 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 663412516 is about 25756.7955305003. The cubic root of 663412516 is about 872.1567645241.

The spelling of 663412516 in words is "six hundred sixty-three million, four hundred twelve thousand, five hundred sixteen".