166842666676 has 12 divisors (see below), whose sum is σ = 333685333408. Its totient is φ = 71503999992.

The previous prime is 166842666673. The next prime is 166842666751. The reversal of 166842666676 is 676666248661.

It is a happy number.

166842666676 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166842666673) 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, 2979333306 + ... + 2979333361.

Almost surely, 2^166842666676 is an apocalyptic number.

It is an amenable number.

166842666676 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166842666676 is a wasteful number, since it uses less digits than its factorization.

166842666676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958666678 (or 5958666676 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 64.

The spelling of 166842666676 in words is "one hundred sixty-six billion, eight hundred forty-two million, six hundred sixty-six thousand, six hundred seventy-six".