51066505010166 has 32 divisors (see below), whose sum is σ = 102413204880480. Its totient is φ = 16975484273664.

The previous prime is 51066505010159. The next prime is 51066505010177. The reversal of 51066505010166 is 66101050566015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11685606 + ... + 15449478.

It is an arithmetic number, because the mean of its divisors is an integer number (3200412652515).

Almost surely, 2^{51066505010166} is an apocalyptic number.

51066505010166 is an abundant number, since it is smaller than the sum of its proper divisors (51346699870314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51066505010166 is a wasteful number, since it uses less digits than its factorization.

51066505010166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770080.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 51066505010166 in words is "fifty-one trillion, sixty-six billion, five hundred five million, ten thousand, one hundred sixty-six".