51663141165 has 16 divisors (see below), whose sum is σ = 83433561408. Its totient is φ = 27296163456.

The previous prime is 51663141161. The next prime is 51663141169. The reversal of 51663141165 is 56114136615.

It is an interprime number because it is at equal distance from previous prime (51663141161) and next prime (51663141169).

It is not a de Polignac number, because 51663141165 - 2² = 51663141161 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51663141161) 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 15 ways as a sum of consecutive naturals, for example, 16092832 + ... + 16096041.

It is an arithmetic number, because the mean of its divisors is an integer number (5214597588).

Almost surely, 2^51663141165 is an apocalyptic number.

It is an amenable number.

51663141165 is a deficient number, since it is larger than the sum of its proper divisors (31770420243).

51663141165 is a wasteful number, since it uses less digits than its factorization.

51663141165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32188988.

The product of its digits is 64800, while the sum is 39.

The spelling of 51663141165 in words is "fifty-one billion, six hundred sixty-three million, one hundred forty-one thousand, one hundred sixty-five".