666422224666 has 16 divisors (see below), whose sum is σ = 1098354489120. Its totient is φ = 300739916880.

The previous prime is 666422224609. The next prime is 666422224669.

666422224666 is nontrivially palindromic in base 10.

666422224666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (666422224669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108960681 + ... + 108966796.

It is an arithmetic number, because the mean of its divisors is an integer number (68647155570).

Almost surely, 2^666422224666 is an apocalyptic number.

666422224666 is a deficient number, since it is larger than the sum of its proper divisors (431932264454).

666422224666 is a wasteful number, since it uses less digits than its factorization.

666422224666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217927629.

The product of its digits is 11943936, while the sum is 52.

The spelling of 666422224666 in words is "six hundred sixty-six billion, four hundred twenty-two million, two hundred twenty-four thousand, six hundred sixty-six".