16133965489 has 2 divisors, whose sum is σ = 16133965490. Its totient is φ = 16133965488.

The previous prime is 16133965487. The next prime is 16133965493. The reversal of 16133965489 is 98456933161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9126936225 + 7007029264 = 95535^2 + 83708^2 .

It is a cyclic number.

It is not a de Polignac number, because 16133965489 - 2¹ = 16133965487 is a prime.

Together with 16133965487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16133965487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8066982744 + 8066982745.

It is an arithmetic number, because the mean of its divisors is an integer number (8066982745).

Almost surely, 2^16133965489 is an apocalyptic number.

It is an amenable number.

16133965489 is a deficient number, since it is larger than the sum of its proper divisors (1).

16133965489 is an equidigital number, since it uses as much as digits as its factorization.

16133965489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4199040, while the sum is 55.

The spelling of 16133965489 in words is "sixteen billion, one hundred thirty-three million, nine hundred sixty-five thousand, four hundred eighty-nine".