16446064451 has 2 divisors, whose sum is σ = 16446064452. Its totient is φ = 16446064450.

The previous prime is 16446064447. The next prime is 16446064477. The reversal of 16446064451 is 15446064461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16446064451 - 2² = 16446064447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16446064399 and 16446064408.

It is not a weakly prime, because it can be changed into another prime (16446094451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8223032225 + 8223032226.

It is an arithmetic number, because the mean of its divisors is an integer number (8223032226).

Almost surely, 2^16446064451 is an apocalyptic number.

16446064451 is a deficient number, since it is larger than the sum of its proper divisors (1).

16446064451 is an equidigital number, since it uses as much as digits as its factorization.

16446064451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 16446064451 in words is "sixteen billion, four hundred forty-six million, sixty-four thousand, four hundred fifty-one".