166666684883 has 4 divisors (see below), whose sum is σ = 168224317560. Its totient is φ = 165109052208.

The previous prime is 166666684871. The next prime is 166666684907. The reversal of 166666684883 is 388486666661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166666684883 - 2¹² = 166666680787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166666684853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778816178 + ... + 778816391.

It is an arithmetic number, because the mean of its divisors is an integer number (42056079390).

Almost surely, 2^166666684883 is an apocalyptic number.

166666684883 is a deficient number, since it is larger than the sum of its proper divisors (1557632677).

166666684883 is a wasteful number, since it uses less digits than its factorization.

166666684883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557632676.

The product of its digits is 286654464, while the sum is 68.

The spelling of 166666684883 in words is "one hundred sixty-six billion, six hundred sixty-six million, six hundred eighty-four thousand, eight hundred eighty-three".