16008645 has 32 divisors (see below), whose sum is σ = 27554688. Its totient is φ = 7907328.

The previous prime is 16008637. The next prime is 16008649. The reversal of 16008645 is 54680061.

16008645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16008645 - 2³ = 16008637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16008649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16617 + ... + 17553.

It is an arithmetic number, because the mean of its divisors is an integer number (861084).

Almost surely, 2^16008645 is an apocalyptic number.

16008645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16008645 is a deficient number, since it is larger than the sum of its proper divisors (11546043).

16008645 is a wasteful number, since it uses less digits than its factorization.

16008645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029.

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

The square root of 16008645 is about 4001.0804790706. The cubic root of 16008645 is about 252.0295852138.

It can be divided in two parts, 16008 and 645, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 16008645 in words is "sixteen million, eight thousand, six hundred forty-five".