16041681 has 12 divisors (see below), whose sum is σ = 24391120. Its totient is φ = 10131480.

The previous prime is 16041673. The next prime is 16041713. The reversal of 16041681 is 18614061.

It is not a de Polignac number, because 16041681 - 2³ = 16041673 is a prime.

It is a super-2 number, since 2×16041681² = 514671058611522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16041631) 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 11 ways as a sum of consecutive naturals, for example, 46735 + ... + 47076.

Almost surely, 2^16041681 is an apocalyptic number.

It is an amenable number.

16041681 is a deficient number, since it is larger than the sum of its proper divisors (8349439).

16041681 is a wasteful number, since it uses less digits than its factorization.

16041681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93836 (or 93833 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 16041681 is about 4005.2067362372. The cubic root of 16041681 is about 252.2028317862.

The spelling of 16041681 in words is "sixteen million, forty-one thousand, six hundred eighty-one".