18066332 has 12 divisors (see below), whose sum is σ = 32049696. Its totient is φ = 8909280.

The previous prime is 18066317. The next prime is 18066337. The reversal of 18066332 is 23366081.

It is a junction number, because it is equal to n+sod(n) for n = 18066295 and 18066304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18066337) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 30644 + ... + 31227.

It is an arithmetic number, because the mean of its divisors is an integer number (2670808).

Almost surely, 2^18066332 is an apocalyptic number.

It is an amenable number.

18066332 is a deficient number, since it is larger than the sum of its proper divisors (13983364).

18066332 is a wasteful number, since it uses less digits than its factorization.

18066332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61948 (or 61946 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 18066332 is about 4250.4507996211. The cubic root of 18066332 is about 262.3956688942.

The spelling of 18066332 in words is "eighteen million, sixty-six thousand, three hundred thirty-two".