51662671548217 has 8 divisors (see below), whose sum is σ = 51926711682816. Its totient is φ = 51399119926272.

The previous prime is 51662671548211. The next prime is 51662671548223. The reversal of 51662671548217 is 71284517626615.

It is an interprime number because it is at equal distance from previous prime (51662671548211) and next prime (51662671548223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51662671548217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51662671548211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121916113 + ... + 122339134.

It is an arithmetic number, because the mean of its divisors is an integer number (6490838960352).

Almost surely, 2^{51662671548217} is an apocalyptic number.

It is an amenable number.

51662671548217 is a deficient number, since it is larger than the sum of its proper divisors (264040134599).

51662671548217 is a wasteful number, since it uses less digits than its factorization.

51662671548217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244256327.

The product of its digits is 33868800, while the sum is 61.

The spelling of 51662671548217 in words is "fifty-one trillion, six hundred sixty-two billion, six hundred seventy-one million, five hundred forty-eight thousand, two hundred seventeen".