16065887 has 8 divisors (see below), whose sum is σ = 16950000. Its totient is φ = 15185664.

The previous prime is 16065883. The next prime is 16065893. The reversal of 16065887 is 78856061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16065887 - 2² = 16065883 is a prime.

It is a super-2 number, since 2×16065887² = 516225450193538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16065883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12239 + ... + 13487.

It is an arithmetic number, because the mean of its divisors is an integer number (2118750).

Almost surely, 2^16065887 is an apocalyptic number.

16065887 is a deficient number, since it is larger than the sum of its proper divisors (884113).

16065887 is a wasteful number, since it uses less digits than its factorization.

16065887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 16065887 is about 4008.2274137080. The cubic root of 16065887 is about 252.3296213604.

The spelling of 16065887 in words is "sixteen million, sixty-five thousand, eight hundred eighty-seven".