16446411049 has 2 divisors, whose sum is σ = 16446411050. Its totient is φ = 16446411048.

The previous prime is 16446411019. The next prime is 16446411061. The reversal of 16446411049 is 94011464461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9578145424 + 6868265625 = 97868^2 + 82875^2 .

It is a cyclic number.

It is not a de Polignac number, because 16446411049 - 2¹⁵ = 16446378281 is a prime.

It is not a weakly prime, because it can be changed into another prime (16446411019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8223205524 + 8223205525.

It is an arithmetic number, because the mean of its divisors is an integer number (8223205525).

Almost surely, 2^16446411049 is an apocalyptic number.

It is an amenable number.

16446411049 is a deficient number, since it is larger than the sum of its proper divisors (1).

16446411049 is an equidigital number, since it uses as much as digits as its factorization.

16446411049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 16446411049 in words is "sixteen billion, four hundred forty-six million, four hundred eleven thousand, forty-nine".