66504304 has 10 divisors (see below), whose sum is σ = 128852120. Its totient is φ = 33252144.

The previous prime is 66504299. The next prime is 66504329. The reversal of 66504304 is 40340566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2078244 + ... + 2078275.

It is an arithmetic number, because the mean of its divisors is an integer number (12885212).

Almost surely, 2^66504304 is an apocalyptic number.

It is an amenable number.

66504304 is a deficient number, since it is larger than the sum of its proper divisors (62347816).

66504304 is a wasteful number, since it uses less digits than its factorization.

66504304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156527 (or 4156521 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 66504304 is about 8155.0171060520. The cubic root of 66504304 is about 405.1506912697.

The spelling of 66504304 in words is "sixty-six million, five hundred four thousand, three hundred four".