226620066 has 8 divisors (see below), whose sum is σ = 453240144. Its totient is φ = 75540020.

The previous prime is 226620061. The next prime is 226620073. The reversal of 226620066 is 660026622.

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

226620066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (226620061) by changing a digit.

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, 18885000 + ... + 18885011.

It is an arithmetic number, because the mean of its divisors is an integer number (56655018).

Almost surely, 2^226620066 is an apocalyptic number.

226620066 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.

226620066 is a wasteful number, since it uses less digits than its factorization.

226620066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37770016.

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

The square root of 226620066 is about 15053.9053404756. The cubic root of 226620066 is about 609.6764978211.

Adding to 226620066 its reverse (660026622), we get a palindrome (886646688).

The spelling of 226620066 in words is "two hundred twenty-six million, six hundred twenty thousand, sixty-six".