66044067 has 8 divisors (see below), whose sum is σ = 88146000. Its totient is φ = 43985760.

The previous prime is 66044039. The next prime is 66044089. The reversal of 66044067 is 76044066.

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

It is not a de Polignac number, because 66044067 - 2⁶ = 66044003 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (66044467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7192 + ... + 13557.

It is an arithmetic number, because the mean of its divisors is an integer number (11018250).

Almost surely, 2^66044067 is an apocalyptic number.

66044067 is a deficient number, since it is larger than the sum of its proper divisors (22101933).

66044067 is a wasteful number, since it uses less digits than its factorization.

66044067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21813.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 66044067 is about 8126.7500884425. The cubic root of 66044067 is about 404.2139241349.

Subtracting 66044067 from its reverse (76044066), we obtain a palindrome (9999999).

The spelling of 66044067 in words is "sixty-six million, forty-four thousand, sixty-seven".