16216564451 has 8 divisors (see below), whose sum is σ = 16264881600. Its totient is φ = 16168277160.

The previous prime is 16216564423. The next prime is 16216564457. The reversal of 16216564451 is 15446561261.

16216564451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16216564451 - 2¹⁴ = 16216548067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16216564399 and 16216564408.

It is not an unprimeable number, because it can be changed into a prime (16216564457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1545260 + ... + 1555718.

It is an arithmetic number, because the mean of its divisors is an integer number (2033110200).

Almost surely, 2^16216564451 is an apocalyptic number.

16216564451 is a deficient number, since it is larger than the sum of its proper divisors (48317149).

16216564451 is a wasteful number, since it uses less digits than its factorization.

16216564451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14929.

The product of its digits is 172800, while the sum is 41.

The spelling of 16216564451 in words is "sixteen billion, two hundred sixteen million, five hundred sixty-four thousand, four hundred fifty-one".