166729730968 has 16 divisors (see below), whose sum is σ = 312686408160. Its totient is φ = 83346688800.

The previous prime is 166729730957. The next prime is 166729730977. The reversal of 166729730968 is 869037927661.

It is a happy number.

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, 2233063 + ... + 2306518.

It is an arithmetic number, because the mean of its divisors is an integer number (19542900510).

Almost surely, 2^166729730968 is an apocalyptic number.

It is an amenable number.

166729730968 is a deficient number, since it is larger than the sum of its proper divisors (145956677192).

166729730968 is a wasteful number, since it uses less digits than its factorization.

166729730968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544178 (or 4544174 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 166729730968 in words is "one hundred sixty-six billion, seven hundred twenty-nine million, seven hundred thirty thousand, nine hundred sixty-eight".