66150222 has 8 divisors (see below), whose sum is σ = 132300456. Its totient is φ = 22050072.

The previous prime is 66150209. The next prime is 66150283. The reversal of 66150222 is 22205166.

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

66150222 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 66150192 and 66150201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5512513 + ... + 5512524.

It is an arithmetic number, because the mean of its divisors is an integer number (16537557).

Almost surely, 2^66150222 is an apocalyptic number.

66150222 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.

66150222 is a wasteful number, since it uses less digits than its factorization.

66150222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11025042.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 66150222 is about 8133.2786746797. The cubic root of 66150222 is about 404.4303773894.

Adding to 66150222 its reverse (22205166), we get a palindrome (88355388).

The spelling of 66150222 in words is "sixty-six million, one hundred fifty thousand, two hundred twenty-two".