266004213340243 has 6 divisors (see below), whose sum is σ = 309433472661156. Its totient is φ = 228003611434452.

The previous prime is 266004213340223. The next prime is 266004213340247. The reversal of 266004213340243 is 342043312400662.

It is not a de Polignac number, because 266004213340243 - 2¹³ = 266004213332051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266004213340196 and 266004213340205.

It is not an unprimeable number, because it can be changed into a prime (266004213340247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2714328707505 + ... + 2714328707602.

It is an arithmetic number, because the mean of its divisors is an integer number (51572245443526).

Almost surely, 2^{266004213340243} is an apocalyptic number.

266004213340243 is a deficient number, since it is larger than the sum of its proper divisors (43429259320913).

266004213340243 is an equidigital number, since it uses as much as digits as its factorization.

266004213340243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5428657415121 (or 5428657415114 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 40.

The spelling of 266004213340243 in words is "two hundred sixty-six trillion, four billion, two hundred thirteen million, three hundred forty thousand, two hundred forty-three".