16645368 has 64 divisors (see below), whose sum is σ = 44265600. Its totient is φ = 5201280.

The previous prime is 16645367. The next prime is 16645411. The reversal of 16645368 is 86354661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16645361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78783 + ... + 78993.

It is an arithmetic number, because the mean of its divisors is an integer number (691650).

Almost surely, 2^16645368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16645368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22132800).

16645368 is an abundant number, since it is smaller than the sum of its proper divisors (27620232).

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

16645368 is a wasteful number, since it uses less digits than its factorization.

16645368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 408 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 16645368 is about 4079.8735274516. The cubic root of 16645368 is about 255.3276219540.

The spelling of 16645368 in words is "sixteen million, six hundred forty-five thousand, three hundred sixty-eight".