16008681 has 16 divisors (see below), whose sum is σ = 23305856. Its totient is φ = 9714816.

The previous prime is 16008677. The next prime is 16008683. The reversal of 16008681 is 18680061.

It is not a de Polignac number, because 16008681 - 2² = 16008677 is a prime.

It is a super-2 number, since 2×16008681² = 512555734719522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16008683) 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 15 ways as a sum of consecutive naturals, for example, 36 + ... + 5658.

It is an arithmetic number, because the mean of its divisors is an integer number (1456616).

Almost surely, 2^16008681 is an apocalyptic number.

It is an amenable number.

16008681 is a deficient number, since it is larger than the sum of its proper divisors (7297175).

16008681 is a wasteful number, since it uses less digits than its factorization.

16008681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 16008681 is about 4001.0849778529. The cubic root of 16008681 is about 252.0297741338.

The spelling of 16008681 in words is "sixteen million, eight thousand, six hundred eighty-one".