266744207161 has 8 divisors (see below), whose sum is σ = 281813397120. Its totient is φ = 252066424848.

The previous prime is 266744207153. The next prime is 266744207179. The reversal of 266744207161 is 161702447662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266744207161 - 2³ = 266744207153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266744207131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97850511 + ... + 97853236.

It is an arithmetic number, because the mean of its divisors is an integer number (35226674640).

Almost surely, 2^266744207161 is an apocalyptic number.

It is an amenable number.

266744207161 is a deficient number, since it is larger than the sum of its proper divisors (15069189959).

266744207161 is a wasteful number, since it uses less digits than its factorization.

266744207161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195703823.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 266744207161 in words is "two hundred sixty-six billion, seven hundred forty-four million, two hundred seven thousand, one hundred sixty-one".