218604218602 has 32 divisors (see below), whose sum is σ = 408846870144. Its totient is φ = 85164518400.

The previous prime is 218604218579. The next prime is 218604218641. The reversal of 218604218602 is 206812406812.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2626458 + ... + 2708410.

It is an arithmetic number, because the mean of its divisors is an integer number (12776464692).

Almost surely, 2^218604218602 is an apocalyptic number.

218604218602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

218604218602 is a deficient number, since it is larger than the sum of its proper divisors (190242651542).

218604218602 is a wasteful number, since it uses less digits than its factorization.

218604218602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99294.

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 218604218602 in words is "two hundred eighteen billion, six hundred four million, two hundred eighteen thousand, six hundred two".