66466799 has 8 divisors (see below), whose sum is σ = 76140960. Its totient is φ = 56837376.

The previous prime is 66466793. The next prime is 66466801. The reversal of 66466799 is 99766466.

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 66466799 - 2²⁴ = 49689583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66466799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66466793) 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, 7934 + ... + 13995.

It is an arithmetic number, because the mean of its divisors is an integer number (9517620).

Almost surely, 2^66466799 is an apocalyptic number.

66466799 is a deficient number, since it is larger than the sum of its proper divisors (9674161).

66466799 is a wasteful number, since it uses less digits than its factorization.

66466799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22369.

The product of its digits is 2939328, while the sum is 53.

The square root of 66466799 is about 8152.7172770801. The cubic root of 66466799 is about 405.0745155783.

The spelling of 66466799 in words is "sixty-six million, four hundred sixty-six thousand, seven hundred ninety-nine".