166876644 has 48 divisors (see below), whose sum is σ = 429016896. Its totient is φ = 50064000.

The previous prime is 166876637. The next prime is 166876667. The reversal of 166876644 is 446678661.

It is a junction number, because it is equal to n+sod(n) for n = 166876593 and 166876602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7074 + ... + 19590.

It is an arithmetic number, because the mean of its divisors is an integer number (8937852).

Almost surely, 2^166876644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166876644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214508448).

166876644 is an abundant number, since it is smaller than the sum of its proper divisors (262140252).

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

166876644 is a wasteful number, since it uses less digits than its factorization.

166876644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12636 (or 12634 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 166876644 is about 12918.0743146957. The cubic root of 166876644 is about 550.5522211208.

The spelling of 166876644 in words is "one hundred sixty-six million, eight hundred seventy-six thousand, six hundred forty-four".