23166666 has 24 divisors (see below), whose sum is σ = 50285664. Its totient is φ = 7708200.

The previous prime is 23166659. The next prime is 23166667. The reversal of 23166666 is 66666132.

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

23166666 is a modest number, since divided by 6666 gives 2316 as remainder.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23166666.

It is not an unprimeable number, because it can be changed into a prime (23166667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15241 + ... + 16691.

It is an arithmetic number, because the mean of its divisors is an integer number (2095236).

Almost surely, 2^23166666 is an apocalyptic number.

23166666 is an abundant number, since it is smaller than the sum of its proper divisors (27118998).

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

23166666 is a wasteful number, since it uses less digits than its factorization.

23166666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346 (or 2343 counting only the distinct ones).

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

The square root of 23166666 is about 4813.1762901435. The cubic root of 23166666 is about 285.0719670519.

It can be divided in two parts, 23166 and 666, that added together give a palindrome (23832).

The spelling of 23166666 in words is "twenty-three million, one hundred sixty-six thousand, six hundred sixty-six".