16446411019 has 2 divisors, whose sum is σ = 16446411020. Its totient is φ = 16446411018.

The previous prime is 16446410999. The next prime is 16446411049. The reversal of 16446411019 is 91011464461.

It is a weak prime.

It is an emirp because it is prime and its reverse (91011464461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16446411019 - 2⁵ = 16446410987 is a prime.

It is a super-2 number, since 2×16446411019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16446411049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8223205509 + 8223205510.

It is an arithmetic number, because the mean of its divisors is an integer number (8223205510).

Almost surely, 2^16446411019 is an apocalyptic number.

16446411019 is a deficient number, since it is larger than the sum of its proper divisors (1).

16446411019 is an equidigital number, since it uses as much as digits as its factorization.

16446411019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 16446411019 in words is "sixteen billion, four hundred forty-six million, four hundred eleven thousand, nineteen".