166023236 has 6 divisors (see below), whose sum is σ = 290540670. Its totient is φ = 83011616.

The previous prime is 166023229. The next prime is 166023239. The reversal of 166023236 is 632320661.

166023236 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 160528900 + 5494336 = 12670^2 + 2344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 166023199 and 166023208.

It is not an unprimeable number, because it can be changed into a prime (166023239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20752901 + ... + 20752908.

It is an arithmetic number, because the mean of its divisors is an integer number (48423445).

Almost surely, 2^166023236 is an apocalyptic number.

It is an amenable number.

166023236 is a deficient number, since it is larger than the sum of its proper divisors (124517434).

166023236 is a wasteful number, since it uses less digits than its factorization.

166023236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41505813 (or 41505811 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 166023236 is about 12885.0004268529. Note that the first 3 decimals coincide. The cubic root of 166023236 is about 549.6121077672.

Adding to 166023236 its reverse (632320661), we get a palindrome (798343897).

The spelling of 166023236 in words is "one hundred sixty-six million, twenty-three thousand, two hundred thirty-six".