16463703881 has 2 divisors, whose sum is σ = 16463703882. Its totient is φ = 16463703880.

The previous prime is 16463703871. The next prime is 16463703887. The reversal of 16463703881 is 18830736461.

16463703881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9938295481 + 6525408400 = 99691^2 + 80780^2 .

It is an emirp because it is prime and its reverse (18830736461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16463703881 - 2¹⁴ = 16463687497 is a prime.

It is a super-2 number, since 2×16463703881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16463703887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8231851940 + 8231851941.

It is an arithmetic number, because the mean of its divisors is an integer number (8231851941).

Almost surely, 2^16463703881 is an apocalyptic number.

It is an amenable number.

16463703881 is a deficient number, since it is larger than the sum of its proper divisors (1).

16463703881 is an equidigital number, since it uses as much as digits as its factorization.

16463703881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 16463703881 in words is "sixteen billion, four hundred sixty-three million, seven hundred three thousand, eight hundred eighty-one".