66223422 has 12 divisors (see below), whose sum is σ = 143484120. Its totient is φ = 22074468.

The previous prime is 66223411. The next prime is 66223427. The reversal of 66223422 is 22432266.

66223422 is a `hidden beast` number, since 6 + 622 + 34 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66223427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1839522 + ... + 1839557.

It is an arithmetic number, because the mean of its divisors is an integer number (11957010).

Almost surely, 2^66223422 is an apocalyptic number.

66223422 is an abundant number, since it is smaller than the sum of its proper divisors (77260698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66223422 is a wasteful number, since it uses less digits than its factorization.

66223422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679087 (or 3679084 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 66223422 is about 8137.7774607076. Note that the first 3 decimals coincide. The cubic root of 66223422 is about 404.5794995423.

Adding to 66223422 its reverse (22432266), we get a palindrome (88655688).

The spelling of 66223422 in words is "sixty-six million, two hundred twenty-three thousand, four hundred twenty-two".