16648438212 has 36 divisors (see below), whose sum is σ = 48095488896. Its totient is φ = 4756696560.

The previous prime is 16648438207. The next prime is 16648438253. The reversal of 16648438212 is 21283484661.

16648438212 is a `hidden beast` number, since 166 + 48 + 438 + 2 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 33032364 + ... + 33032867.

Almost surely, 2^16648438212 is an apocalyptic number.

16648438212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16648438212 is an abundant number, since it is smaller than the sum of its proper divisors (31447050684).

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

16648438212 is a wasteful number, since it uses less digits than its factorization.

16648438212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66065248 (or 66065243 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The spelling of 16648438212 in words is "sixteen billion, six hundred forty-eight million, four hundred thirty-eight thousand, two hundred twelve".