6446016588643 has 2 divisors, whose sum is σ = 6446016588644. Its totient is φ = 6446016588642.

The previous prime is 6446016588629. The next prime is 6446016588679. The reversal of 6446016588643 is 3468856106446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6446016588643 - 2⁵ = 6446016588611 is a prime.

It is a super-2 number, since 2×6446016588643² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6446016589643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3223008294321 + 3223008294322.

It is an arithmetic number, because the mean of its divisors is an integer number (3223008294322).

Almost surely, 2^{6446016588643} is an apocalyptic number.

6446016588643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6446016588643 is an equidigital number, since it uses as much as digits as its factorization.

6446016588643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79626240, while the sum is 61.

The spelling of 6446016588643 in words is "six trillion, four hundred forty-six billion, sixteen million, five hundred eighty-eight thousand, six hundred forty-three".