16316165 has 4 divisors (see below), whose sum is σ = 19579404. Its totient is φ = 13052928.

The previous prime is 16316143. The next prime is 16316171. The reversal of 16316165 is 56161361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56161361 = 293 ⋅191677.

It can be written as a sum of positive squares in 2 ways, for example, as 5013121 + 11303044 = 2239^2 + 3362^2 .

It is a cyclic number.

It is not a de Polignac number, because 16316165 - 2¹⁸ = 16054021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631612 + ... + 1631621.

It is an arithmetic number, because the mean of its divisors is an integer number (4894851).

Almost surely, 2^16316165 is an apocalyptic number.

It is an amenable number.

16316165 is a deficient number, since it is larger than the sum of its proper divisors (3263239).

16316165 is an equidigital number, since it uses as much as digits as its factorization.

16316165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263238.

The product of its digits is 3240, while the sum is 29.

The square root of 16316165 is about 4039.3272954788. The cubic root of 16316165 is about 253.6331582079.

The spelling of 16316165 in words is "sixteen million, three hundred sixteen thousand, one hundred sixty-five".