16340450663 has 2 divisors, whose sum is σ = 16340450664. Its totient is φ = 16340450662.

The previous prime is 16340450653. The next prime is 16340450681. The reversal of 16340450663 is 36605404361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16340450663 - 2²⁰ = 16339402087 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16340450603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8170225331 + 8170225332.

It is an arithmetic number, because the mean of its divisors is an integer number (8170225332).

Almost surely, 2^16340450663 is an apocalyptic number.

16340450663 is a deficient number, since it is larger than the sum of its proper divisors (1).

16340450663 is an equidigital number, since it uses as much as digits as its factorization.

16340450663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 16340450663 in words is "sixteen billion, three hundred forty million, four hundred fifty thousand, six hundred sixty-three".