16589077081 has 2 divisors, whose sum is σ = 16589077082. Its totient is φ = 16589077080.

The previous prime is 16589077079. The next prime is 16589077091. The reversal of 16589077081 is 18077098561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15976960000 + 612117081 = 126400^2 + 24741^2 .

It is a cyclic number.

It is not a de Polignac number, because 16589077081 - 2¹ = 16589077079 is a prime.

It is a super-2 number, since 2×16589077081² (a number of 21 digits) contains 22 as substring.

Together with 16589077079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16589077051) 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, 8294538540 + 8294538541.

It is an arithmetic number, because the mean of its divisors is an integer number (8294538541).

Almost surely, 2^16589077081 is an apocalyptic number.

It is an amenable number.

16589077081 is a deficient number, since it is larger than the sum of its proper divisors (1).

16589077081 is an equidigital number, since it uses as much as digits as its factorization.

16589077081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 52.

The spelling of 16589077081 in words is "sixteen billion, five hundred eighty-nine million, seventy-seven thousand, eighty-one".