218668070 has 16 divisors (see below), whose sum is σ = 397662048. Its totient is φ = 86565120.

The previous prime is 218668067. The next prime is 218668081. The reversal of 218668070 is 70866812.

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 7 ways as a sum of consecutive naturals, for example, 111746 + ... + 113685.

It is an arithmetic number, because the mean of its divisors is an integer number (24853878).

Almost surely, 2^218668070 is an apocalyptic number.

218668070 is a deficient number, since it is larger than the sum of its proper divisors (178993978).

218668070 is a wasteful number, since it uses less digits than its factorization.

218668070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225535.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 218668070 is about 14787.4294588343. The cubic root of 218668070 is about 602.4603326673.

The spelling of 218668070 in words is "two hundred eighteen million, six hundred sixty-eight thousand, seventy".