20002218184 has 16 divisors (see below), whose sum is σ = 40389094620. Its totient is φ = 9231792960.

The previous prime is 20002218163. The next prime is 20002218209. The reversal of 20002218184 is 48181220002.

It can be written as a sum of positive squares in 2 ways, for example, as 14203395684 + 5798822500 = 119178^2 + 76150^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 96164407 + ... + 96164614.

Almost surely, 2^20002218184 is an apocalyptic number.

It is an amenable number.

20002218184 is an abundant number, since it is smaller than the sum of its proper divisors (20386876436).

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

20002218184 is a wasteful number, since it uses less digits than its factorization.

20002218184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192329040 (or 192329036 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

Adding to 20002218184 its reverse (48181220002), we get a palindrome (68183438186).

The spelling of 20002218184 in words is "twenty billion, two million, two hundred eighteen thousand, one hundred eighty-four".