16065613 has 4 divisors (see below), whose sum is σ = 16123068. Its totient is φ = 16008160.

The previous prime is 16065611. The next prime is 16065649. The reversal of 16065613 is 31656061.

16065613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31656061 = 499 ⋅63439.

It can be written as a sum of positive squares in 2 ways, for example, as 13638249 + 2427364 = 3693^2 + 1558^2 .

It is a cyclic number.

It is not a de Polignac number, because 16065613 - 2¹ = 16065611 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 (16065611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28306 + ... + 28867.

It is an arithmetic number, because the mean of its divisors is an integer number (4030767).

Almost surely, 2^16065613 is an apocalyptic number.

It is an amenable number.

16065613 is a deficient number, since it is larger than the sum of its proper divisors (57455).

16065613 is an equidigital number, since it uses as much as digits as its factorization.

16065613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57454.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 16065613 is about 4008.1932338649. The cubic root of 16065613 is about 252.3281868777.

The spelling of 16065613 in words is "sixteen million, sixty-five thousand, six hundred thirteen".