266043064453161 has 16 divisors (see below), whose sum is σ = 358242389774208. Its totient is φ = 175602951680000.

The previous prime is 266043064453139. The next prime is 266043064453183. The reversal of 266043064453161 is 161354460340662.

It is an interprime number because it is at equal distance from previous prime (266043064453139) and next prime (266043064453183).

It is a cyclic number.

It is not a de Polignac number, because 266043064453161 - 2²⁶ = 266042997344297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266043064453261) 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, 10070185 + ... + 25169321.

It is an arithmetic number, because the mean of its divisors is an integer number (22390149360888).

Almost surely, 2^{266043064453161} is an apocalyptic number.

It is an amenable number.

266043064453161 is a deficient number, since it is larger than the sum of its proper divisors (92199325321047).

266043064453161 is a wasteful number, since it uses less digits than its factorization.

266043064453161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15157392.

The product of its (nonzero) digits is 7464960, while the sum is 51.

The spelling of 266043064453161 in words is "two hundred sixty-six trillion, forty-three billion, sixty-four million, four hundred fifty-three thousand, one hundred sixty-one".