32166666 has 64 divisors (see below), whose sum is σ = 83635200. Its totient is φ = 8972208.

The previous prime is 32166643. The next prime is 32166671. The reversal of 32166666 is 66666123.

It is a nude number because it is divisible by every one of its digits.

32166666 is a modest number, since divided by 6666 gives 3216 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 32166666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15265 + ... + 17243.

It is an arithmetic number, because the mean of its divisors is an integer number (1306800).

Almost surely, 2^32166666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32166666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41817600).

32166666 is an abundant number, since it is smaller than the sum of its proper divisors (51468534).

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

32166666 is a wasteful number, since it uses less digits than its factorization.

32166666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040 (or 2034 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 32166666 is about 5671.5664502851. The cubic root of 32166666 is about 318.0304349653.

The spelling of 32166666 in words is "thirty-two million, one hundred sixty-six thousand, six hundred sixty-six".