18067616 has 48 divisors (see below), whose sum is σ = 41207040. Its totient is φ = 7637760.

The previous prime is 18067597. The next prime is 18067619. The reversal of 18067616 is 61676081.

It is not an unprimeable number, because it can be changed into a prime (18067619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17186 + ... + 18206.

It is an arithmetic number, because the mean of its divisors is an integer number (858480).

Almost surely, 2^18067616 is an apocalyptic number.

18067616 is a gapful number since it is divisible by the number (16) 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 18067616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20603520).

18067616 is an abundant number, since it is smaller than the sum of its proper divisors (23139424).

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

18067616 is a wasteful number, since it uses less digits than its factorization.

18067616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 18067616 is about 4250.6018397399. The cubic root of 18067616 is about 262.4018850251.

The spelling of 18067616 in words is "eighteen million, sixty-seven thousand, six hundred sixteen".