16506444463 has 2 divisors, whose sum is σ = 16506444464. Its totient is φ = 16506444462.

The previous prime is 16506444433. The next prime is 16506444469. The reversal of 16506444463 is 36444460561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16506444463 - 2⁹ = 16506443951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16506444469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253222231 + 8253222232.

It is an arithmetic number, because the mean of its divisors is an integer number (8253222232).

Almost surely, 2^16506444463 is an apocalyptic number.

16506444463 is a deficient number, since it is larger than the sum of its proper divisors (1).

16506444463 is an equidigital number, since it uses as much as digits as its factorization.

16506444463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 16506444463 in words is "sixteen billion, five hundred six million, four hundred forty-four thousand, four hundred sixty-three".