66622022 has 8 divisors (see below), whose sum is σ = 99981216. Its totient is φ = 33294952.

The previous prime is 66622021. The next prime is 66622057. The reversal of 66622022 is 22022666.

66622022 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 junction number, because it is equal to n+sod(n) for n = 66621982 and 66622000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66622021) 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, 1913 + ... + 11700.

It is an arithmetic number, because the mean of its divisors is an integer number (12497652).

Almost surely, 2^66622022 is an apocalyptic number.

66622022 is a deficient number, since it is larger than the sum of its proper divisors (33359194).

66622022 is a wasteful number, since it uses less digits than its factorization.

66622022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16062.

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

The square root of 66622022 is about 8162.2314350918. The cubic root of 66622022 is about 405.3896001993.

Adding to 66622022 its reverse (22022666), we get a palindrome (88644688).

The spelling of 66622022 in words is "sixty-six million, six hundred twenty-two thousand, twenty-two".