16000065 has 32 divisors (see below), whose sum is σ = 29687040. Its totient is φ = 8160768.

The previous prime is 16000057. The next prime is 16000079. The reversal of 16000065 is 56000061.

16000065 is a `hidden beast` number, since 1 + 600 + 0 + 0 + 65 = 666.

It is not a de Polignac number, because 16000065 - 2³ = 16000057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 529 + ... + 5681.

It is an arithmetic number, because the mean of its divisors is an integer number (927720).

Almost surely, 2^16000065 is an apocalyptic number.

16000065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16000065 is a deficient number, since it is larger than the sum of its proper divisors (13686975).

16000065 is a wasteful number, since it uses less digits than its factorization.

16000065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5190 (or 5184 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 16000065 is about 4000.0081249917. The cubic root of 16000065 is about 251.9845512071.

The spelling of 16000065 in words is "sixteen million, sixty-five", and thus it is an aban number and an uban number.