166666685284 has 12 divisors (see below), whose sum is σ = 318181853808. Its totient is φ = 75757584200.

The previous prime is 166666685261. The next prime is 166666685293. The reversal of 166666685284 is 482586666661.

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, 1893939562 + ... + 1893939649.

It is an arithmetic number, because the mean of its divisors is an integer number (26515154484).

Almost surely, 2^166666685284 is an apocalyptic number.

It is an amenable number.

166666685284 is a deficient number, since it is larger than the sum of its proper divisors (151515168524).

166666685284 is a wasteful number, since it uses less digits than its factorization.

166666685284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787879226 (or 3787879224 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 64.

The spelling of 166666685284 in words is "one hundred sixty-six billion, six hundred sixty-six million, six hundred eighty-five thousand, two hundred eighty-four".