266946946936271 has 4 divisors (see below), whose sum is σ = 305082225070032. Its totient is φ = 228811668802512.

The previous prime is 266946946936207. The next prime is 266946946936309. The reversal of 266946946936271 is 172639649649662.

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 266946946936271 - 2⁶ = 266946946936207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266946946936871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19067639066870 + ... + 19067639066883.

It is an arithmetic number, because the mean of its divisors is an integer number (76270556267508).

Almost surely, 2^{266946946936271} is an apocalyptic number.

266946946936271 is a deficient number, since it is larger than the sum of its proper divisors (38135278133761).

266946946936271 is an equidigital number, since it uses as much as digits as its factorization.

266946946936271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38135278133760.

The product of its digits is 7618738176, while the sum is 80.

The spelling of 266946946936271 in words is "two hundred sixty-six trillion, nine hundred forty-six billion, nine hundred forty-six million, nine hundred thirty-six thousand, two hundred seventy-one".