266340323166 has 32 divisors (see below), whose sum is σ = 542805213600. Its totient is φ = 87100164480.

The previous prime is 266340323149. The next prime is 266340323167. The reversal of 266340323166 is 661323043662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266340323167) 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, 792981 + ... + 1077728.

It is an arithmetic number, because the mean of its divisors is an integer number (16962662925).

Almost surely, 2^266340323166 is an apocalyptic number.

266340323166 is an abundant number, since it is smaller than the sum of its proper divisors (276464890434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266340323166 is a wasteful number, since it uses less digits than its factorization.

266340323166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871164.

The product of its (nonzero) digits is 559872, while the sum is 42.

The spelling of 266340323166 in words is "two hundred sixty-six billion, three hundred forty million, three hundred twenty-three thousand, one hundred sixty-six".