51600660218 has 64 divisors (see below), whose sum is σ = 90272931840. Its totient is φ = 21942150912.

The previous prime is 51600660217. The next prime is 51600660253. The reversal of 51600660218 is 81206600615.

It is a happy number.

51600660218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51600660217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5448155 + ... + 5457617.

It is an arithmetic number, because the mean of its divisors is an integer number (1410514560).

Almost surely, 2^51600660218 is an apocalyptic number.

51600660218 is a deficient number, since it is larger than the sum of its proper divisors (38672271622).

51600660218 is a wasteful number, since it uses less digits than its factorization.

51600660218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9891.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 51600660218 in words is "fifty-one billion, six hundred million, six hundred sixty thousand, two hundred eighteen".