16321065 has 8 divisors (see below), whose sum is σ = 26113728. Its totient is φ = 8704560.

The previous prime is 16321049. The next prime is 16321093. The reversal of 16321065 is 56012361.

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

It is not a de Polignac number, because 16321065 - 2⁴ = 16321049 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544021 + ... + 544050.

It is an arithmetic number, because the mean of its divisors is an integer number (3264216).

Almost surely, 2^16321065 is an apocalyptic number.

16321065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16321065 is a deficient number, since it is larger than the sum of its proper divisors (9792663).

16321065 is a wasteful number, since it uses less digits than its factorization.

16321065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088079.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 16321065 is about 4039.9337865861. The cubic root of 16321065 is about 253.6585456704.

The spelling of 16321065 in words is "sixteen million, three hundred twenty-one thousand, sixty-five".