16643460585071 has 2 divisors, whose sum is σ = 16643460585072. Its totient is φ = 16643460585070.

The previous prime is 16643460585061. The next prime is 16643460585083. The reversal of 16643460585071 is 17058506434661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16643460585071 - 2²⁶ = 16643393476207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16643460584998 and 16643460585016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16643460585061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8321730292535 + 8321730292536.

It is an arithmetic number, because the mean of its divisors is an integer number (8321730292536).

Almost surely, 2^{16643460585071} is an apocalyptic number.

16643460585071 is a deficient number, since it is larger than the sum of its proper divisors (1).

16643460585071 is an equidigital number, since it uses as much as digits as its factorization.

16643460585071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 16643460585071 in words is "sixteen trillion, six hundred forty-three billion, four hundred sixty million, five hundred eighty-five thousand, seventy-one".