63318616 has 32 divisors (see below), whose sum is σ = 123264000. Its totient is φ = 30460320.

The previous prime is 63318613. The next prime is 63318631. The reversal of 63318616 is 61681336.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63318611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48711 + ... + 49993.

It is an arithmetic number, because the mean of its divisors is an integer number (3852000).

Almost surely, 2^63318616 is an apocalyptic number.

It is an amenable number.

63318616 is a deficient number, since it is larger than the sum of its proper divisors (59945384).

63318616 is a wasteful number, since it uses less digits than its factorization.

63318616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519 (or 1515 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 63318616 is about 7957.2995419300. The cubic root of 63318616 is about 398.5753821838.

The spelling of 63318616 in words is "sixty-three million, three hundred eighteen thousand, six hundred sixteen".