166679868 has 48 divisors (see below), whose sum is σ = 399611520. Its totient is φ = 54043584.

The previous prime is 166679831. The next prime is 166679869. The reversal of 166679868 is 868976661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166679869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163063 + ... + 164081.

It is an arithmetic number, because the mean of its divisors is an integer number (8325240).

Almost surely, 2^166679868 is an apocalyptic number.

It is an amenable number.

166679868 is an abundant number, since it is smaller than the sum of its proper divisors (232931652).

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

166679868 is a wasteful number, since it uses less digits than its factorization.

166679868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386 (or 1384 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The square root of 166679868 is about 12910.4557626755. The cubic root of 166679868 is about 550.3357377129.

The spelling of 166679868 in words is "one hundred sixty-six million, six hundred seventy-nine thousand, eight hundred sixty-eight".