16260558889 has 2 divisors, whose sum is σ = 16260558890. Its totient is φ = 16260558888.

The previous prime is 16260558823. The next prime is 16260558911. The reversal of 16260558889 is 98885506261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16251915289 + 8643600 = 127483^2 + 2940^2 .

It is a cyclic number.

It is not a de Polignac number, because 16260558889 - 2¹¹ = 16260556841 is a prime.

It is not a weakly prime, because it can be changed into another prime (16260558289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8130279444 + 8130279445.

It is an arithmetic number, because the mean of its divisors is an integer number (8130279445).

Almost surely, 2^16260558889 is an apocalyptic number.

It is an amenable number.

16260558889 is a deficient number, since it is larger than the sum of its proper divisors (1).

16260558889 is an equidigital number, since it uses as much as digits as its factorization.

16260558889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8294400, while the sum is 58.

The spelling of 16260558889 in words is "sixteen billion, two hundred sixty million, five hundred fifty-eight thousand, eight hundred eighty-nine".