16216345 has 8 divisors (see below), whose sum is σ = 19750464. Its totient is φ = 12779184.

The previous prime is 16216339. The next prime is 16216349. The reversal of 16216345 is 54361261.

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

It is a cyclic number.

It is not a de Polignac number, because 16216345 - 2¹⁹ = 15692057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16216349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23869 + ... + 24538.

It is an arithmetic number, because the mean of its divisors is an integer number (2468808).

Almost surely, 2^16216345 is an apocalyptic number.

It is an amenable number.

16216345 is a deficient number, since it is larger than the sum of its proper divisors (3534119).

16216345 is an equidigital number, since it uses as much as digits as its factorization.

16216345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48479.

The product of its digits is 4320, while the sum is 28.

The square root of 16216345 is about 4026.9523215454. The cubic root of 16216345 is about 253.1148691774.

It can be divided in two parts, 16216 and 345, that added together give a palindrome (16561).

The spelling of 16216345 in words is "sixteen million, two hundred sixteen thousand, three hundred forty-five".