266453504346473 has 2 divisors, whose sum is σ = 266453504346474. Its totient is φ = 266453504346472.

The previous prime is 266453504346443. The next prime is 266453504346553. The reversal of 266453504346473 is 374643405354662.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260872632008704 + 5580872337769 = 16151552^2 + 2362387^2 .

It is a cyclic number.

It is not a de Polignac number, because 266453504346473 - 2¹⁴ = 266453504330089 is a prime.

It is not a weakly prime, because it can be changed into another prime (266453504346443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133226752173236 + 133226752173237.

It is an arithmetic number, because the mean of its divisors is an integer number (133226752173237).

Almost surely, 2^{266453504346473} is an apocalyptic number.

It is an amenable number.

266453504346473 is a deficient number, since it is larger than the sum of its proper divisors (1).

266453504346473 is an equidigital number, since it uses as much as digits as its factorization.

266453504346473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 522547200, while the sum is 62.

The spelling of 266453504346473 in words is "two hundred sixty-six trillion, four hundred fifty-three billion, five hundred four million, three hundred forty-six thousand, four hundred seventy-three".