222164643 has 8 divisors (see below), whose sum is σ = 297624256. Its totient is φ = 147407400.

The previous prime is 222164633. The next prime is 222164651. The reversal of 222164643 is 346461222.

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

It is not a de Polignac number, because 222164643 - 2⁴ = 222164627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222164643.

It is not an unprimeable number, because it can be changed into a prime (222164633) 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, 174853 + ... + 176118.

It is an arithmetic number, because the mean of its divisors is an integer number (37203032).

Almost surely, 2^222164643 is an apocalyptic number.

222164643 is a deficient number, since it is larger than the sum of its proper divisors (75459613).

222164643 is a wasteful number, since it uses less digits than its factorization.

222164643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351185.

The product of its digits is 13824, while the sum is 30.

The square root of 222164643 is about 14905.1884590568. The cubic root of 222164643 is about 605.6545455632.

The spelling of 222164643 in words is "two hundred twenty-two million, one hundred sixty-four thousand, six hundred forty-three".