16401010447 has 2 divisors, whose sum is σ = 16401010448. Its totient is φ = 16401010446.

The previous prime is 16401010441. The next prime is 16401010469. The reversal of 16401010447 is 74401010461.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16401010447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16401010441) 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 as a sum of consecutive naturals, namely, 8200505223 + 8200505224.

It is an arithmetic number, because the mean of its divisors is an integer number (8200505224).

Almost surely, 2^16401010447 is an apocalyptic number.

16401010447 is a deficient number, since it is larger than the sum of its proper divisors (1).

16401010447 is an equidigital number, since it uses as much as digits as its factorization.

16401010447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 16401010447 in words is "sixteen billion, four hundred one million, ten thousand, four hundred forty-seven".