16430065 has 4 divisors (see below), whose sum is σ = 19716084. Its totient is φ = 13144048.

The previous prime is 16430059. The next prime is 16430069. The reversal of 16430065 is 56003461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56003461 = 47 ⋅1191563.

It can be written as a sum of positive squares in 2 ways, for example, as 11607649 + 4822416 = 3407^2 + 2196^2 .

It is a cyclic number.

It is not a de Polignac number, because 16430065 - 2¹⁷ = 16298993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16430069) 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, 1643002 + ... + 1643011.

It is an arithmetic number, because the mean of its divisors is an integer number (4929021).

Almost surely, 2^16430065 is an apocalyptic number.

It is an amenable number.

16430065 is a deficient number, since it is larger than the sum of its proper divisors (3286019).

16430065 is an equidigital number, since it uses as much as digits as its factorization.

16430065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286018.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 16430065 is about 4053.4016578671. The cubic root of 16430065 is about 254.2219782277.

The spelling of 16430065 in words is "sixteen million, four hundred thirty thousand, sixty-five".