266122642345 has 16 divisors (see below), whose sum is σ = 365011827840. Its totient is φ = 182462281344.

The previous prime is 266122642333. The next prime is 266122642349. The reversal of 266122642345 is 543246221662.

It is not a de Polignac number, because 266122642345 - 2⁷ = 266122642217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266122642349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154780 + ... + 745789.

It is an arithmetic number, because the mean of its divisors is an integer number (22813239240).

Almost surely, 2^266122642345 is an apocalyptic number.

It is an amenable number.

266122642345 is a deficient number, since it is larger than the sum of its proper divisors (98889185495).

266122642345 is an equidigital number, since it uses as much as digits as its factorization.

266122642345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909024.

The product of its digits is 829440, while the sum is 43.

The spelling of 266122642345 in words is "two hundred sixty-six billion, one hundred twenty-two million, six hundred forty-two thousand, three hundred forty-five".