6416545658667 has 16 divisors (see below), whose sum is σ = 8927524339200. Its totient is φ = 4091638561472.

The previous prime is 6416545658651. The next prime is 6416545658687. The reversal of 6416545658667 is 7668565456146.

It is a cyclic number.

It is not a de Polignac number, because 6416545658667 - 2⁴ = 6416545658651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is not an unprimeable number, because it can be changed into a prime (6416545658687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3299959 + ... + 4870607.

It is an arithmetic number, because the mean of its divisors is an integer number (557970271200).

Almost surely, 2^{6416545658667} is an apocalyptic number.

6416545658667 is a deficient number, since it is larger than the sum of its proper divisors (2510978680533).

6416545658667 is a wasteful number, since it uses less digits than its factorization.

6416545658667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629882.

The product of its digits is 870912000, while the sum is 69.

The spelling of 6416545658667 in words is "six trillion, four hundred sixteen billion, five hundred forty-five million, six hundred fifty-eight thousand, six hundred sixty-seven".