16648005 has 32 divisors (see below), whose sum is σ = 29283840. Its totient is φ = 8009280.

The previous prime is 16648003. The next prime is 16648031. The reversal of 16648005 is 50084661.

It is not a de Polignac number, because 16648005 - 2¹ = 16648003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16648003) 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, 26586 + ... + 27204.

It is an arithmetic number, because the mean of its divisors is an integer number (915120).

Almost surely, 2^16648005 is an apocalyptic number.

16648005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16648005 is a deficient number, since it is larger than the sum of its proper divisors (12635835).

16648005 is a wasteful number, since it uses less digits than its factorization.

16648005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 16648005 is about 4080.1966864356. The cubic root of 16648005 is about 255.3411044513.

It can be divided in two parts, 1664 and 8005, that added together give a palindrome (9669).

The spelling of 16648005 in words is "sixteen million, six hundred forty-eight thousand, five".