18116652 has 48 divisors (see below), whose sum is σ = 44844800. Its totient is φ = 5676480.

The previous prime is 18116597. The next prime is 18116653. The reversal of 18116652 is 25661181.

It is not an unprimeable number, because it can be changed into a prime (18116653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41049 + ... + 41487.

Almost surely, 2^18116652 is an apocalyptic number.

18116652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18116652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22422400).

18116652 is an abundant number, since it is smaller than the sum of its proper divisors (26728148).

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

18116652 is a wasteful number, since it uses less digits than its factorization.

18116652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 18116652 is about 4256.3660556865. The cubic root of 18116652 is about 262.6390592003.

The spelling of 18116652 in words is "eighteen million, one hundred sixteen thousand, six hundred fifty-two".