166666685084 has 24 divisors (see below), whose sum is σ = 308873476800. Its totient is φ = 78418704896.

The previous prime is 166666685063. The next prime is 166666685093. The reversal of 166666685084 is 480586666661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232592 + ... + 622440.

It is an arithmetic number, because the mean of its divisors is an integer number (12869728200).

Almost surely, 2^166666685084 is an apocalyptic number.

It is an amenable number.

166666685084 is a deficient number, since it is larger than the sum of its proper divisors (142206791716).

166666685084 is a wasteful number, since it uses less digits than its factorization.

166666685084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396157 (or 396155 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 62.

The spelling of 166666685084 in words is "one hundred sixty-six billion, six hundred sixty-six million, six hundred eighty-five thousand, eighty-four".