16224600409 has 4 divisors (see below), whose sum is σ = 16406899380. Its totient is φ = 16042301440.

The previous prime is 16224600397. The next prime is 16224600433. The reversal of 16224600409 is 90400642261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10226872384 + 5997728025 = 101128^2 + 77445^2 .

It is a cyclic number.

It is not a de Polignac number, because 16224600409 - 2⁵ = 16224600377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16224600109) 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, 91149352 + ... + 91149529.

It is an arithmetic number, because the mean of its divisors is an integer number (4101724845).

Almost surely, 2^16224600409 is an apocalyptic number.

It is an amenable number.

16224600409 is a deficient number, since it is larger than the sum of its proper divisors (182298971).

16224600409 is an equidigital number, since it uses as much as digits as its factorization.

16224600409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182298970.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 16224600409 in words is "sixteen billion, two hundred twenty-four million, six hundred thousand, four hundred nine".