16586049481 has 2 divisors, whose sum is σ = 16586049482. Its totient is φ = 16586049480.

The previous prime is 16586049479. The next prime is 16586049499. The reversal of 16586049481 is 18494068561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9459313081 + 7126736400 = 97259^2 + 84420^2 .

It is a cyclic number.

It is not a de Polignac number, because 16586049481 - 2¹ = 16586049479 is a prime.

It is a super-2 number, since 2×16586049481² (a number of 21 digits) contains 22 as substring.

Together with 16586049479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16586049421) 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, 8293024740 + 8293024741.

It is an arithmetic number, because the mean of its divisors is an integer number (8293024741).

Almost surely, 2^16586049481 is an apocalyptic number.

It is an amenable number.

16586049481 is a deficient number, since it is larger than the sum of its proper divisors (1).

16586049481 is an equidigital number, since it uses as much as digits as its factorization.

16586049481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 16586049481 in words is "sixteen billion, five hundred eighty-six million, forty-nine thousand, four hundred eighty-one".