16128648 has 48 divisors (see below), whose sum is σ = 46254780. Its totient is φ = 5059584.

The previous prime is 16128647. The next prime is 16128659. The reversal of 16128648 is 84682161.

16128648 is a `hidden beast` number, since 1 + 6 + 1 + 2 + 8 + 648 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15350724 + 777924 = 3918^2 + 882^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (16128647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5365 + ... + 7812.

Almost surely, 2^16128648 is an apocalyptic number.

16128648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16128648 is an abundant number, since it is smaller than the sum of its proper divisors (30126132).

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

16128648 is a wasteful number, since it uses less digits than its factorization.

16128648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13206 (or 13199 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 16128648 is about 4016.0488044843. The cubic root of 16128648 is about 252.6577676250.

The spelling of 16128648 in words is "sixteen million, one hundred twenty-eight thousand, six hundred forty-eight".