16446445039 has 4 divisors (see below), whose sum is σ = 16551199624. Its totient is φ = 16341690456.

The previous prime is 16446445003. The next prime is 16446445063. The reversal of 16446445039 is 93054464461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93054464461 = 7 ⋅13293494923.

It is a cyclic number.

It is not a de Polignac number, because 16446445039 - 2²³ = 16438056431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16446445039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16446415039) 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, 52377057 + ... + 52377370.

It is an arithmetic number, because the mean of its divisors is an integer number (4137799906).

Almost surely, 2^16446445039 is an apocalyptic number.

16446445039 is a deficient number, since it is larger than the sum of its proper divisors (104754585).

16446445039 is a wasteful number, since it uses less digits than its factorization.

16446445039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104754584.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 16446445039 in words is "sixteen billion, four hundred forty-six million, four hundred forty-five thousand, thirty-nine".