16465063309 has 2 divisors, whose sum is σ = 16465063310. Its totient is φ = 16465063308.

The previous prime is 16465063297. The next prime is 16465063399. The reversal of 16465063309 is 90336056461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15121620900 + 1343442409 = 122970^2 + 36653^2 .

It is a cyclic number.

It is not a de Polignac number, because 16465063309 - 2⁹ = 16465062797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16465063399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232531654 + 8232531655.

It is an arithmetic number, because the mean of its divisors is an integer number (8232531655).

Almost surely, 2^16465063309 is an apocalyptic number.

It is an amenable number.

16465063309 is a deficient number, since it is larger than the sum of its proper divisors (1).

16465063309 is an equidigital number, since it uses as much as digits as its factorization.

16465063309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 16465063309 in words is "sixteen billion, four hundred sixty-five million, sixty-three thousand, three hundred nine".