16543021463 has 2 divisors, whose sum is σ = 16543021464. Its totient is φ = 16543021462.

The previous prime is 16543021459. The next prime is 16543021499. The reversal of 16543021463 is 36412034561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16543021463 - 2² = 16543021459 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16543021163) 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, 8271510731 + 8271510732.

It is an arithmetic number, because the mean of its divisors is an integer number (8271510732).

Almost surely, 2^16543021463 is an apocalyptic number.

16543021463 is a deficient number, since it is larger than the sum of its proper divisors (1).

16543021463 is an equidigital number, since it uses as much as digits as its factorization.

16543021463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 16543021463 in words is "sixteen billion, five hundred forty-three million, twenty-one thousand, four hundred sixty-three".