16446313445 has 8 divisors (see below), whose sum is σ = 20005926936. Its totient is φ = 12976816896.

The previous prime is 16446313441. The next prime is 16446313447. The reversal of 16446313445 is 54431364461.

It can be written as a sum of positive squares in 4 ways, for example, as 6374585281 + 10071728164 = 79841^2 + 100358^2 .

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 16446313445 - 2² = 16446313441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16446313441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22528832 + ... + 22529561.

It is an arithmetic number, because the mean of its divisors is an integer number (2500740867).

Almost surely, 2^16446313445 is an apocalyptic number.

It is an amenable number.

16446313445 is a deficient number, since it is larger than the sum of its proper divisors (3559613491).

16446313445 is an equidigital number, since it uses as much as digits as its factorization.

16446313445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45058471.

The product of its digits is 414720, while the sum is 41.

The spelling of 16446313445 in words is "sixteen billion, four hundred forty-six million, three hundred thirteen thousand, four hundred forty-five".