16065106609 has 2 divisors, whose sum is σ = 16065106610. Its totient is φ = 16065106608.

The previous prime is 16065106571. The next prime is 16065106619. The reversal of 16065106609 is 90660156061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16051623025 + 13483584 = 126695^2 + 3672^2 .

It is an emirp because it is prime and its reverse (90660156061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16065106609 - 2²³ = 16056718001 is a prime.

It is not a weakly prime, because it can be changed into another prime (16065106619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8032553304 + 8032553305.

It is an arithmetic number, because the mean of its divisors is an integer number (8032553305).

Almost surely, 2^16065106609 is an apocalyptic number.

It is an amenable number.

16065106609 is a deficient number, since it is larger than the sum of its proper divisors (1).

16065106609 is an equidigital number, since it uses as much as digits as its factorization.

16065106609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 16065106609 in words is "sixteen billion, sixty-five million, one hundred six thousand, six hundred nine".