16618351008 has 48 divisors (see below), whose sum is σ = 49855055040. Its totient is φ = 4748100096.

The previous prime is 16618350887. The next prime is 16618351027. The reversal of 16618351008 is 80015381661.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12364173 + ... + 12365516.

It is an arithmetic number, because the mean of its divisors is an integer number (1038646980).

Almost surely, 2^16618351008 is an apocalyptic number.

It is an amenable number.

16618351008 is an abundant number, since it is smaller than the sum of its proper divisors (33236704032).

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

16618351008 is a wasteful number, since it uses less digits than its factorization.

16618351008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24729709 (or 24729701 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 16618351008 in words is "sixteen billion, six hundred eighteen million, three hundred fifty-one thousand, eight".