166672668 has 12 divisors (see below), whose sum is σ = 388902920. Its totient is φ = 55557552.

The previous prime is 166672631. The next prime is 166672711. The reversal of 166672668 is 866276661.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6944683 + ... + 6944706.

Almost surely, 2^166672668 is an apocalyptic number.

It is an amenable number.

166672668 is an abundant number, since it is smaller than the sum of its proper divisors (222230252).

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

166672668 is a wasteful number, since it uses less digits than its factorization.

166672668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13889396 (or 13889394 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 166672668 is about 12910.1769159063. The cubic root of 166672668 is about 550.3278133918.

The spelling of 166672668 in words is "one hundred sixty-six million, six hundred seventy-two thousand, six hundred sixty-eight".