66222606 has 8 divisors (see below), whose sum is σ = 132445224. Its totient is φ = 22074200.

The previous prime is 66222601. The next prime is 66222613. The reversal of 66222606 is 60622266.

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

66222606 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66222601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5518545 + ... + 5518556.

It is an arithmetic number, because the mean of its divisors is an integer number (16555653).

Almost surely, 2^66222606 is an apocalyptic number.

66222606 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.

66222606 is a wasteful number, since it uses less digits than its factorization.

66222606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11037106.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 66222606 is about 8137.7273240138. The cubic root of 66222606 is about 404.5778378028.

It can be divided in two parts, 6622260 and 6, that added together give a palindrome (6622266).

The spelling of 66222606 in words is "sixty-six million, two hundred twenty-two thousand, six hundred six".