16363245643 has 2 divisors, whose sum is σ = 16363245644. Its totient is φ = 16363245642.

The previous prime is 16363245583. The next prime is 16363245667. The reversal of 16363245643 is 34654236361.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16363245643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16363245643.

It is not a weakly prime, because it can be changed into another prime (16363245043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8181622821 + 8181622822.

It is an arithmetic number, because the mean of its divisors is an integer number (8181622822).

Almost surely, 2^16363245643 is an apocalyptic number.

16363245643 is a deficient number, since it is larger than the sum of its proper divisors (1).

16363245643 is an equidigital number, since it uses as much as digits as its factorization.

16363245643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 43.

The spelling of 16363245643 in words is "sixteen billion, three hundred sixty-three million, two hundred forty-five thousand, six hundred forty-three".