66220046 has 8 divisors (see below), whose sum is σ = 100055520. Its totient is φ = 32868208.

The previous prime is 66220031. The next prime is 66220069. The reversal of 66220046 is 64002266.

66220046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66219997 and 66220024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120566 + ... + 121113.

It is an arithmetic number, because the mean of its divisors is an integer number (12506940).

Almost surely, 2^66220046 is an apocalyptic number.

66220046 is a deficient number, since it is larger than the sum of its proper divisors (33835474).

66220046 is a wasteful number, since it uses less digits than its factorization.

66220046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241818.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 66220046 is about 8137.5700304206. The cubic root of 66220046 is about 404.5726244138.

The spelling of 66220046 in words is "sixty-six million, two hundred twenty thousand, forty-six".