266122047742 has 16 divisors (see below), whose sum is σ = 400882645152. Its totient is φ = 132494618880.

The previous prime is 266122047739. The next prime is 266122047743. The reversal of 266122047742 is 247740221662.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266122047743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5517543 + ... + 5565565.

It is an arithmetic number, because the mean of its divisors is an integer number (25055165322).

Almost surely, 2^266122047742 is an apocalyptic number.

266122047742 is a deficient number, since it is larger than the sum of its proper divisors (134760597410).

266122047742 is a wasteful number, since it uses less digits than its factorization.

266122047742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59763.

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 266122047742 in words is "two hundred sixty-six billion, one hundred twenty-two million, forty-seven thousand, seven hundred forty-two".