166841666676 has 24 divisors (see below), whose sum is σ = 432552469440. Its totient is φ = 55613888856.

The previous prime is 166841666671. The next prime is 166841666687. The reversal of 166841666676 is 676666148661.

It is a happy number.

166841666676 is digitally balanced in base 3 and base 7, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166841666676² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166841666671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772415016 + ... + 772415231.

It is an arithmetic number, because the mean of its divisors is an integer number (18023019560).

Almost surely, 2^166841666676 is an apocalyptic number.

It is an amenable number.

166841666676 is an abundant number, since it is smaller than the sum of its proper divisors (265710802764).

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

166841666676 is a wasteful number, since it uses less digits than its factorization.

166841666676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544830260 (or 1544830252 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 63.

The spelling of 166841666676 in words is "one hundred sixty-six billion, eight hundred forty-one million, six hundred sixty-six thousand, six hundred seventy-six".