266330666363 has 4 divisors (see below), whose sum is σ = 267271764408. Its totient is φ = 265389568320.

The previous prime is 266330666339. The next prime is 266330666377. The reversal of 266330666363 is 363666033662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 266330666363 - 2¹² = 266330662267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266330656363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470548598 + ... + 470549163.

It is an arithmetic number, because the mean of its divisors is an integer number (66817941102).

Almost surely, 2^266330666363 is an apocalyptic number.

266330666363 is a deficient number, since it is larger than the sum of its proper divisors (941098045).

266330666363 is an equidigital number, since it uses as much as digits as its factorization.

266330666363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941098044.

The product of its (nonzero) digits is 7558272, while the sum is 50.

The spelling of 266330666363 in words is "two hundred sixty-six billion, three hundred thirty million, six hundred sixty-six thousand, three hundred sixty-three".