6416416423609 has 2 divisors, whose sum is σ = 6416416423610. Its totient is φ = 6416416423608.

The previous prime is 6416416423607. The next prime is 6416416423639. The reversal of 6416416423609 is 9063246146146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4934049297984 + 1482367125625 = 2221272^2 + 1217525^2 .

It is a cyclic number.

It is not a de Polignac number, because 6416416423609 - 2¹ = 6416416423607 is a prime.

Together with 6416416423607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6416416423603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3208208211804 + 3208208211805.

It is an arithmetic number, because the mean of its divisors is an integer number (3208208211805).

Almost surely, 2^{6416416423609} is an apocalyptic number.

It is an amenable number.

6416416423609 is a deficient number, since it is larger than the sum of its proper divisors (1).

6416416423609 is an equidigital number, since it uses as much as digits as its factorization.

6416416423609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 52.

The spelling of 6416416423609 in words is "six trillion, four hundred sixteen billion, four hundred sixteen million, four hundred twenty-three thousand, six hundred nine".