218636704150 has 24 divisors (see below), whose sum is σ = 413556890040. Its totient is φ = 85972397760.

The previous prime is 218636704147. The next prime is 218636704159. The reversal of 218636704150 is 51407636812.

It is a junction number, because it is equal to n+sod(n) for n = 218636704097 and 218636704106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218636704159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37054119 + ... + 37060018.

It is an arithmetic number, because the mean of its divisors is an integer number (17231537085).

Almost surely, 2^218636704150 is an apocalyptic number.

218636704150 is a deficient number, since it is larger than the sum of its proper divisors (194920185890).

218636704150 is a wasteful number, since it uses less digits than its factorization.

218636704150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74114208 (or 74114203 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 218636704150 in words is "two hundred eighteen billion, six hundred thirty-six million, seven hundred four thousand, one hundred fifty".