218836232660 has 24 divisors (see below), whose sum is σ = 466028712576. Its totient is φ = 86301612320.

The previous prime is 218836232647. The next prime is 218836232663. The reversal of 218836232660 is 66232638812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218836232663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 77053592 + ... + 77056431.

It is an arithmetic number, because the mean of its divisors is an integer number (19417863024).

Almost surely, 2^218836232660 is an apocalyptic number.

218836232660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218836232660 is an abundant number, since it is smaller than the sum of its proper divisors (247192479916).

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

218836232660 is a wasteful number, since it uses less digits than its factorization.

218836232660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154110103 (or 154110101 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 218836232660 in words is "two hundred eighteen billion, eight hundred thirty-six million, two hundred thirty-two thousand, six hundred sixty".