2218054168 has 16 divisors (see below), whose sum is σ = 4536929160. Its totient is φ = 1008206400.

The previous prime is 2218054103. The next prime is 2218054169. The reversal of 2218054168 is 8614508122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218054169) by changing a digit.

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, 12602493 + ... + 12602668.

Almost surely, 2^2218054168 is an apocalyptic number.

It is an amenable number.

2218054168 is an abundant number, since it is smaller than the sum of its proper divisors (2318874992).

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

2218054168 is a wasteful number, since it uses less digits than its factorization.

2218054168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25205178 (or 25205174 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 2218054168 is about 47096.2224387477. Note that the first 3 decimals coincide. The cubic root of 2218054168 is about 1304.1395007394.

The spelling of 2218054168 in words is "two billion, two hundred eighteen million, fifty-four thousand, one hundred sixty-eight".