66483216 has 30 divisors (see below), whose sum is σ = 186061070. Its totient is φ = 22161024.

The previous prime is 66483187. The next prime is 66483233. The reversal of 66483216 is 61238466.

66483216 is a `hidden beast` number, since 6 + 648 + 3 + 2 + 1 + 6 = 666.

66483216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 44355600 + 22127616 = 6660^2 + 4704^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 230701 + ... + 230988.

Almost surely, 2^66483216 is an apocalyptic number.

It is an amenable number.

66483216 is an abundant number, since it is smaller than the sum of its proper divisors (119577854).

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

66483216 is a wasteful number, since it uses less digits than its factorization.

66483216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461703 (or 461694 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 66483216 is about 8153.7240571410. The cubic root of 66483216 is about 405.1078633599.

The spelling of 66483216 in words is "sixty-six million, four hundred eighty-three thousand, two hundred sixteen".