6344669637667 has 2 divisors, whose sum is σ = 6344669637668. Its totient is φ = 6344669637666.

The previous prime is 6344669637653. The next prime is 6344669637721. The reversal of 6344669637667 is 7667369664436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6344669637667 - 2⁷ = 6344669637539 is a prime.

It is a super-2 number, since 2×6344669637667² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6344669637667.

It is not a weakly prime, because it can be changed into another prime (6344669631667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3172334818833 + 3172334818834.

It is an arithmetic number, because the mean of its divisors is an integer number (3172334818834).

Almost surely, 2^{6344669637667} is an apocalyptic number.

6344669637667 is a deficient number, since it is larger than the sum of its proper divisors (1).

6344669637667 is an equidigital number, since it uses as much as digits as its factorization.

6344669637667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2962842624, while the sum is 73.

The spelling of 6344669637667 in words is "six trillion, three hundred forty-four billion, six hundred sixty-nine million, six hundred thirty-seven thousand, six hundred sixty-seven".