51665065110110 has 8 divisors (see below), whose sum is σ = 92997117198216. Its totient is φ = 20666026044040.

The previous prime is 51665065110089. The next prime is 51665065110121. The reversal of 51665065110110 is 1101156056615.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2583253255496 + ... + 2583253255515.

It is an arithmetic number, because the mean of its divisors is an integer number (11624639649777).

Almost surely, 2^{51665065110110} is an apocalyptic number.

51665065110110 is a deficient number, since it is larger than the sum of its proper divisors (41332052088106).

51665065110110 is a wasteful number, since it uses less digits than its factorization.

51665065110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5166506511018.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 51665065110110 in words is "fifty-one trillion, six hundred sixty-five billion, sixty-five million, one hundred ten thousand, one hundred ten".