218140801807608 has 48 divisors (see below), whose sum is σ = 590799063792600. Its totient is φ = 72713470276800.

The previous prime is 218140801807483. The next prime is 218140801807613. The reversal of 218140801807608 is 806708108041812.

218140801807608 is a `hidden beast` number, since 2 + 1 + 8 + 14 + 0 + 8 + 0 + 18 + 0 + 7 + 608 = 666.

It is a super-2 number, since 2×218140801807608² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43056958 + ... + 47855858.

Almost surely, 2^{218140801807608} is an apocalyptic number.

It is an amenable number.

218140801807608 is an abundant number, since it is smaller than the sum of its proper divisors (372658261984992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

218140801807608 is a wasteful number, since it uses less digits than its factorization.

218140801807608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5430252 (or 5430245 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 54.

The spelling of 218140801807608 in words is "two hundred eighteen trillion, one hundred forty billion, eight hundred one million, eight hundred seven thousand, six hundred eight".