218814435206 has 4 divisors (see below), whose sum is σ = 328221652812. Its totient is φ = 109407217602.

The previous prime is 218814435167. The next prime is 218814435227. The reversal of 218814435206 is 602534418812.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54703608800 + ... + 54703608803.

It is an arithmetic number, because the mean of its divisors is an integer number (82055413203).

Almost surely, 2^218814435206 is an apocalyptic number.

218814435206 is a deficient number, since it is larger than the sum of its proper divisors (109407217606).

218814435206 is a wasteful number, since it uses less digits than its factorization.

218814435206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109407217605.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 218814435206 in words is "two hundred eighteen billion, eight hundred fourteen million, four hundred thirty-five thousand, two hundred six".