16221463461043 has 2 divisors, whose sum is σ = 16221463461044. Its totient is φ = 16221463461042.

The previous prime is 16221463461041. The next prime is 16221463461079. The reversal of 16221463461043 is 34016436412261.

16221463461043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (34016436412261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16221463461043 - 2¹ = 16221463461041 is a prime.

Together with 16221463461041, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16221463461041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8110731730521 + 8110731730522.

It is an arithmetic number, because the mean of its divisors is an integer number (8110731730522).

Almost surely, 2^{16221463461043} is an apocalyptic number.

16221463461043 is a deficient number, since it is larger than the sum of its proper divisors (1).

16221463461043 is an equidigital number, since it uses as much as digits as its factorization.

16221463461043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 16221463461043 in words is "sixteen trillion, two hundred twenty-one billion, four hundred sixty-three million, four hundred sixty-one thousand, forty-three".