18065712 has 60 divisors (see below), whose sum is σ = 54296376. Its totient is φ = 5160960.

The previous prime is 18065711. The next prime is 18065717. The reversal of 18065712 is 21756081.

It is a self number, because there is not a number n which added to its sum of digits gives 18065712.

It is not an unprimeable number, because it can be changed into a prime (18065711) 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, 1489 + ... + 6192.

Almost surely, 2^18065712 is an apocalyptic number.

18065712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18065712 is an abundant number, since it is smaller than the sum of its proper divisors (36230664).

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

18065712 is a wasteful number, since it uses less digits than its factorization.

18065712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7706 (or 7693 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 18065712 is about 4250.3778655550. The cubic root of 18065712 is about 262.3926672301.

The spelling of 18065712 in words is "eighteen million, sixty-five thousand, seven hundred twelve".