222690566 has 8 divisors (see below), whose sum is σ = 381755280. Its totient is φ = 95438808.

The previous prime is 222690551. The next prime is 222690607. The reversal of 222690566 is 665096222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7953221 + ... + 7953248.

It is an arithmetic number, because the mean of its divisors is an integer number (47719410).

Almost surely, 2^222690566 is an apocalyptic number.

222690566 is a deficient number, since it is larger than the sum of its proper divisors (159064714).

222690566 is a wasteful number, since it uses less digits than its factorization.

222690566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15906478.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 222690566 is about 14922.8203098476. The cubic root of 222690566 is about 606.1320842550.

The spelling of 222690566 in words is "two hundred twenty-two million, six hundred ninety thousand, five hundred sixty-six".