222064666 has 16 divisors (see below), whose sum is σ = 355865760. Its totient is φ = 103617360.

The previous prime is 222064657. The next prime is 222064673. The reversal of 222064666 is 666460222.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 41065 + ... + 46156.

It is an arithmetic number, because the mean of its divisors is an integer number (22241610).

Almost surely, 2^222064666 is an apocalyptic number.

222064666 is a deficient number, since it is larger than the sum of its proper divisors (133801094).

222064666 is a wasteful number, since it uses less digits than its factorization.

222064666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87309.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 222064666 is about 14901.8343166202. The cubic root of 222064666 is about 605.5636811050.

The spelling of 222064666 in words is "two hundred twenty-two million, sixty-four thousand, six hundred sixty-six".