66366230166 has 48 divisors (see below), whose sum is σ = 146542471920. Its totient is φ = 21699362880.

The previous prime is 66366230159. The next prime is 66366230179. The reversal of 66366230166 is 66103266366.

It is a happy number.

66366230166 is a `hidden beast` number, since 6 + 6 + 3 + 6 + 623 + 0 + 16 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6463945 + ... + 6474203.

It is an arithmetic number, because the mean of its divisors is an integer number (3052968165).

Almost surely, 2^66366230166 is an apocalyptic number.

66366230166 is an abundant number, since it is smaller than the sum of its proper divisors (80176241754).

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

66366230166 is a wasteful number, since it uses less digits than its factorization.

66366230166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17101 (or 17098 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 45.

The spelling of 66366230166 in words is "sixty-six billion, three hundred sixty-six million, two hundred thirty thousand, one hundred sixty-six".