266106665342 has 16 divisors (see below), whose sum is σ = 462607967232. Its totient is φ = 112439435640.

The previous prime is 266106665323. The next prime is 266106665399. The reversal of 266106665342 is 243566601662.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133855478 + ... + 133857465.

It is an arithmetic number, because the mean of its divisors is an integer number (28912997952).

Almost surely, 2^266106665342 is an apocalyptic number.

266106665342 is a deficient number, since it is larger than the sum of its proper divisors (196501301890).

266106665342 is a wasteful number, since it uses less digits than its factorization.

266106665342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267713023.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 266106665342 in words is "two hundred sixty-six billion, one hundred six million, six hundred sixty-five thousand, three hundred forty-two".