6443346681005 has 16 divisors (see below), whose sum is σ = 8327314719360. Its totient is φ = 4757861851968.

The previous prime is 6443346680999. The next prime is 6443346681029. The reversal of 6443346681005 is 5001866433446.

It is a cyclic number.

It is not a de Polignac number, because 6443346681005 - 2¹⁴ = 6443346664621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2109185 + ... + 4163574.

It is an arithmetic number, because the mean of its divisors is an integer number (520457169960).

Almost surely, 2^{6443346681005} is an apocalyptic number.

6443346681005 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6443346681005 is a deficient number, since it is larger than the sum of its proper divisors (1883968038355).

6443346681005 is a wasteful number, since it uses less digits than its factorization.

6443346681005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6288580.

The product of its (nonzero) digits is 4976640, while the sum is 50.

The spelling of 6443346681005 in words is "six trillion, four hundred forty-three billion, three hundred forty-six million, six hundred eighty-one thousand, five".