202220166 has 8 divisors (see below), whose sum is σ = 404440344. Its totient is φ = 67406720.

The previous prime is 202220143. The next prime is 202220177. The reversal of 202220166 is 661022202.

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

202220166 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16851675 + ... + 16851686.

It is an arithmetic number, because the mean of its divisors is an integer number (50555043).

Almost surely, 2^202220166 is an apocalyptic number.

202220166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

202220166 is a wasteful number, since it uses less digits than its factorization.

202220166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33703366.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 202220166 is about 14220.4137070621. The cubic root of 202220166 is about 586.9595244253.

Adding to 202220166 its reverse (661022202), we get a palindrome (863242368).

The spelling of 202220166 in words is "two hundred two million, two hundred twenty thousand, one hundred sixty-six".