16448018809 has 8 divisors (see below), whose sum is σ = 16961068800. Its totient is φ = 15941764416.

The previous prime is 16448018803. The next prime is 16448018837. The reversal of 16448018809 is 90881084461.

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 16448018809 - 2⁵ = 16448018777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16448018803) 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, 1693984 + ... + 1703665.

It is an arithmetic number, because the mean of its divisors is an integer number (2120133600).

Almost surely, 2^16448018809 is an apocalyptic number.

It is an amenable number.

16448018809 is a deficient number, since it is larger than the sum of its proper divisors (513049991).

16448018809 is a wasteful number, since it uses less digits than its factorization.

16448018809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397799.

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 16448018809 in words is "sixteen billion, four hundred forty-eight million, eighteen thousand, eight hundred nine".