18416068608 has 384 divisors, whose sum is σ = 58798172160. Its totient is φ = 5016453120.

The previous prime is 18416068603. The next prime is 18416068631. The reversal of 18416068608 is 80686061481.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (18416068603) 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 31 ways as a sum of consecutive naturals, for example, 112981935 + ... + 112982097.

It is an arithmetic number, because the mean of its divisors is an integer number (153120240).

Almost surely, 2^18416068608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18416068608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29399086080).

18416068608 is an abundant number, since it is smaller than the sum of its proper divisors (40382103552).

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

18416068608 is a wasteful number, since it uses less digits than its factorization.

18416068608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 18416068608 in words is "eighteen billion, four hundred sixteen million, sixty-eight thousand, six hundred eight".