222327666 has 160 divisors (see below), whose sum is σ = 592764480. Its totient is φ = 61516800.

The previous prime is 222327661. The next prime is 222327671. The reversal of 222327666 is 666723222.

It is an interprime number because it is at equal distance from previous prime (222327661) and next prime (222327671).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222327666.

It is not an unprimeable number, because it can be changed into a prime (222327661) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 1241965 + ... + 1242143.

It is an arithmetic number, because the mean of its divisors is an integer number (3704778).

Almost surely, 2^222327666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222327666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296382240).

222327666 is an abundant number, since it is smaller than the sum of its proper divisors (370436814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222327666 is a wasteful number, since it uses less digits than its factorization.

222327666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 253 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 222327666 is about 14910.6561223844. The cubic root of 222327666 is about 605.8026511588.

The spelling of 222327666 in words is "two hundred twenty-two million, three hundred twenty-seven thousand, six hundred sixty-six".