16089965 has 16 divisors (see below), whose sum is σ = 19752768. Its totient is φ = 12579456.

The previous prime is 16089959. The next prime is 16089967. The reversal of 16089965 is 56998061.

It is a cyclic number.

It is not a de Polignac number, because 16089965 - 2⁶ = 16089901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16089967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56714 + ... + 56996.

It is an arithmetic number, because the mean of its divisors is an integer number (1234548).

Almost surely, 2^16089965 is an apocalyptic number.

It is an amenable number.

16089965 is a deficient number, since it is larger than the sum of its proper divisors (3662803).

16089965 is a wasteful number, since it uses less digits than its factorization.

16089965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 16089965 is about 4011.2298612770. The cubic root of 16089965 is about 252.4556141959.

The spelling of 16089965 in words is "sixteen million, eighty-nine thousand, nine hundred sixty-five".