66824214 has 8 divisors (see below), whose sum is σ = 133648440. Its totient is φ = 22274736.

The previous prime is 66824179. The next prime is 66824243. The reversal of 66824214 is 41242866.

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

66824214 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5568679 + ... + 5568690.

It is an arithmetic number, because the mean of its divisors is an integer number (16706055).

Almost surely, 2^66824214 is an apocalyptic number.

66824214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66824214 is a wasteful number, since it uses less digits than its factorization.

66824214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11137374.

The product of its digits is 18432, while the sum is 33.

The square root of 66824214 is about 8174.6078805041. The cubic root of 66824214 is about 405.7992933242.

The spelling of 66824214 in words is "sixty-six million, eight hundred twenty-four thousand, two hundred fourteen".