66304468 has 6 divisors (see below), whose sum is σ = 116032826. Its totient is φ = 33152232.

The previous prime is 66304457. The next prime is 66304489. The reversal of 66304468 is 86440366.

It can be written as a sum of positive squares in only one way, i.e., 35856144 + 30448324 = 5988^2 + 5518^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8288055 + ... + 8288062.

Almost surely, 2^66304468 is an apocalyptic number.

It is an amenable number.

66304468 is a deficient number, since it is larger than the sum of its proper divisors (49728358).

66304468 is a wasteful number, since it uses less digits than its factorization.

66304468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16576121 (or 16576119 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 66304468 is about 8142.7555532510. The cubic root of 66304468 is about 404.7444773401.

The spelling of 66304468 in words is "sixty-six million, three hundred four thousand, four hundred sixty-eight".