168101666 has 16 divisors (see below), whose sum is σ = 253921824. Its totient is φ = 83463744.

The previous prime is 168101639. The next prime is 168101669. The reversal of 168101666 is 666101861.

168101666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×168101666² = 56516340223951112, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (168101669) 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, 298301 + ... + 298863.

It is an arithmetic number, because the mean of its divisors is an integer number (15870114).

Almost surely, 2^168101666 is an apocalyptic number.

168101666 is a deficient number, since it is larger than the sum of its proper divisors (85820158).

168101666 is a wasteful number, since it uses less digits than its factorization.

168101666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 168101666 is about 12965.4026547578. The cubic root of 168101666 is about 551.8961179050.

The spelling of 168101666 in words is "one hundred sixty-eight million, one hundred one thousand, six hundred sixty-six".