16395 has 8 divisors (see below), whose sum is σ = 26256. Its totient is φ = 8736.

The previous prime is 16381. The next prime is 16411. The reversal of 16395 is 59361.

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

It is not a de Polignac number, because 16395 - 2⁵ = 16363 is a prime.

16395 is a lucky number.

It is a plaindrome in base 11.

It is a nialpdrome in base 7.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532 + ... + 561.

It is an arithmetic number, because the mean of its divisors is an integer number (3282).

2¹⁶³⁹⁵ is an apocalyptic number.

16395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16395 is a deficient number, since it is larger than the sum of its proper divisors (9861).

16395 is a wasteful number, since it uses less digits than its factorization.

16395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101.

The product of its digits is 810, while the sum is 24.

The square root of 16395 is about 128.0429615403. The cubic root of 16395 is about 25.4040996131.

Adding to 16395 its product of digits (810), we get a triangular number (17205 = T₁₈₅).

The spelling of 16395 in words is "sixteen thousand, three hundred ninety-five".