16651344 has 20 divisors (see below), whose sum is σ = 43016096. Its totient is φ = 5550432.

The previous prime is 16651343. The next prime is 16651357. The reversal of 16651344 is 44315661.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16651343) 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 3 ways as a sum of consecutive naturals, for example, 173404 + ... + 173499.

Almost surely, 2^16651344 is an apocalyptic number.

It is an amenable number.

16651344 is an abundant number, since it is smaller than the sum of its proper divisors (26364752).

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

16651344 is a wasteful number, since it uses less digits than its factorization.

16651344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346914 (or 346908 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 16651344 is about 4080.6058373727. The cubic root of 16651344 is about 255.3581741033.

The spelling of 16651344 in words is "sixteen million, six hundred fifty-one thousand, three hundred forty-four".