266955056607 has 4 divisors (see below), whose sum is σ = 355940075480. Its totient is φ = 177970037736.

The previous prime is 266955056579. The next prime is 266955056611. The reversal of 266955056607 is 706650559662.

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

It is not a de Polignac number, because 266955056607 - 2⁷ = 266955056479 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 (266955056807) 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, 44492509432 + ... + 44492509437.

It is an arithmetic number, because the mean of its divisors is an integer number (88985018870).

Almost surely, 2^266955056607 is an apocalyptic number.

266955056607 is a deficient number, since it is larger than the sum of its proper divisors (88985018873).

266955056607 is an equidigital number, since it uses as much as digits as its factorization.

266955056607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88985018872.

The product of its (nonzero) digits is 20412000, while the sum is 57.

The spelling of 266955056607 in words is "two hundred sixty-six billion, nine hundred fifty-five million, fifty-six thousand, six hundred seven".