222446666806 has 24 divisors (see below), whose sum is σ = 418004178480. Its totient is φ = 88000878672.

The previous prime is 222446666803. The next prime is 222446666863. The reversal of 222446666806 is 608666644222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222446666801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87301186 + ... + 87303733.

It is an arithmetic number, because the mean of its divisors is an integer number (17416840770).

Almost surely, 2^222446666806 is an apocalyptic number.

222446666806 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

222446666806 is a deficient number, since it is larger than the sum of its proper divisors (195557511674).

222446666806 is a wasteful number, since it uses less digits than its factorization.

222446666806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174604948 (or 174604941 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 52.

The spelling of 222446666806 in words is "two hundred twenty-two billion, four hundred forty-six million, six hundred sixty-six thousand, eight hundred six".