51666165014 has 8 divisors (see below), whose sum is σ = 77540020848. Its totient is φ = 25819491400.

The previous prime is 51666165007. The next prime is 51666165037. The reversal of 51666165014 is 41056166615.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6790802 + ... + 6798405.

It is an arithmetic number, because the mean of its divisors is an integer number (9692502606).

Almost surely, 2^51666165014 is an apocalyptic number.

51666165014 is a deficient number, since it is larger than the sum of its proper divisors (25873855834).

51666165014 is a wasteful number, since it uses less digits than its factorization.

51666165014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13591110.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 51666165014 in words is "fifty-one billion, six hundred sixty-six million, one hundred sixty-five thousand, fourteen".