63633216 has 28 divisors (see below), whose sum is σ = 168363392. Its totient is φ = 21211008.

The previous prime is 63633197. The next prime is 63633217. The reversal of 63633216 is 61233636.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63633217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165520 + ... + 165903.

Almost surely, 2^63633216 is an apocalyptic number.

It is an amenable number.

63633216 is an abundant number, since it is smaller than the sum of its proper divisors (104730176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63633216 is a wasteful number, since it uses less digits than its factorization.

63633216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331438 (or 331428 counting only the distinct ones).

The product of its digits is 11664, while the sum is 30.

The square root of 63633216 is about 7977.0430611850. The cubic root of 63633216 is about 399.2344022518.

The spelling of 63633216 in words is "sixty-three million, six hundred thirty-three thousand, two hundred sixteen".