16638150912 has 72 divisors (see below), whose sum is σ = 44301001920. Its totient is φ = 5543639040.

The previous prime is 16638150883. The next prime is 16638150923. The reversal of 16638150912 is 21905183661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3060837 + ... + 3066267.

Almost surely, 2^16638150912 is an apocalyptic number.

16638150912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16638150912 is an abundant number, since it is smaller than the sum of its proper divisors (27662851008).

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

16638150912 is an equidigital number, since it uses as much as digits as its factorization.

16638150912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9439 (or 9425 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 16638150912 in words is "sixteen billion, six hundred thirty-eight million, one hundred fifty thousand, nine hundred twelve".