218066105 has 8 divisors (see below), whose sum is σ = 273056832. Its totient is φ = 166867888.

The previous prime is 218066081. The next prime is 218066143. The reversal of 218066105 is 501660812.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 218066105 - 2⁸ = 218065849 is a prime.

It is a super-2 number, since 2×218066105² = 95105652299742050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 947999 + ... + 948228.

It is an arithmetic number, because the mean of its divisors is an integer number (34132104).

Almost surely, 2^218066105 is an apocalyptic number.

It is an amenable number.

218066105 is a deficient number, since it is larger than the sum of its proper divisors (54990727).

218066105 is a wasteful number, since it uses less digits than its factorization.

218066105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896255.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 218066105 is about 14767.0614883260. The cubic root of 218066105 is about 601.9069927284.

The spelling of 218066105 in words is "two hundred eighteen million, sixty-six thousand, one hundred five".