66009467 has 8 divisors (see below), whose sum is σ = 67870320. Its totient is φ = 64160640.

The previous prime is 66009421. The next prime is 66009469. The reversal of 66009467 is 76490066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66009467 - 2⁶ = 66009403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66009467.

It is not an unprimeable number, because it can be changed into a prime (66009469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8759 + ... + 14447.

It is an arithmetic number, because the mean of its divisors is an integer number (8483790).

Almost surely, 2^66009467 is an apocalyptic number.

66009467 is a deficient number, since it is larger than the sum of its proper divisors (1860853).

66009467 is a wasteful number, since it uses less digits than its factorization.

66009467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6013.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 66009467 is about 8124.6210373161. The cubic root of 66009467 is about 404.1433235724.

The spelling of 66009467 in words is "sixty-six million, nine thousand, four hundred sixty-seven".