406565466193 has 2 divisors, whose sum is σ = 406565466194. Its totient is φ = 406565466192.

The previous prime is 406565466161. The next prime is 406565466287. The reversal of 406565466193 is 391664565604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324343918144 + 82221548049 = 569512^2 + 286743^2 .

It is a cyclic number.

It is not a de Polignac number, because 406565466193 - 2⁵ = 406565466161 is a prime.

It is not a weakly prime, because it can be changed into another prime (406565461193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203282733096 + 203282733097.

It is an arithmetic number, because the mean of its divisors is an integer number (203282733097).

Almost surely, 2^406565466193 is an apocalyptic number.

It is an amenable number.

406565466193 is a deficient number, since it is larger than the sum of its proper divisors (1).

406565466193 is an equidigital number, since it uses as much as digits as its factorization.

406565466193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13996800, while the sum is 55.

The spelling of 406565466193 in words is "four hundred six billion, five hundred sixty-five million, four hundred sixty-six thousand, one hundred ninety-three".