222163643 has 8 divisors (see below), whose sum is σ = 239616048. Its totient is φ = 204763104.

The previous prime is 222163609. The next prime is 222163657. The reversal of 222163643 is 346361222.

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

It is a de Polignac number, because none of the positive numbers 2^k-222163643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222163673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3821 + ... + 21422.

It is an arithmetic number, because the mean of its divisors is an integer number (29952006).

Almost surely, 2^222163643 is an apocalyptic number.

222163643 is a deficient number, since it is larger than the sum of its proper divisors (17452405).

222163643 is a wasteful number, since it uses less digits than its factorization.

222163643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25933.

The product of its digits is 10368, while the sum is 29.

The square root of 222163643 is about 14905.1549136532. The cubic root of 222163643 is about 605.6536368446.

The spelling of 222163643 in words is "two hundred twenty-two million, one hundred sixty-three thousand, six hundred forty-three".