51600660219 has 12 divisors (see below), whose sum is σ = 77104435200. Its totient is φ = 33214217904.

The previous prime is 51600660217. The next prime is 51600660253. The reversal of 51600660219 is 91206600615.

It is not a de Polignac number, because 51600660219 - 2¹ = 51600660217 is a prime.

It is a super-2 number, since 2×51600660219² (a number of 22 digits) contains 22 as substring.

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

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98851579 + ... + 98852100.

It is an arithmetic number, because the mean of its divisors is an integer number (6425369600).

Almost surely, 2^51600660219 is an apocalyptic number.

51600660219 is a deficient number, since it is larger than the sum of its proper divisors (25503774981).

51600660219 is a wasteful number, since it uses less digits than its factorization.

51600660219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197703714 (or 197703711 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 51600660219 in words is "fifty-one billion, six hundred million, six hundred sixty thousand, two hundred nineteen".