266012331655101 has 16 divisors (see below), whose sum is σ = 373351912803840. Its totient is φ = 168007216065840.

The previous prime is 266012331655097. The next prime is 266012331655111. The reversal of 266012331655101 is 101556133210662.

It is a happy number.

It is not a de Polignac number, because 266012331655101 - 2² = 266012331655097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266012331655111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9253056 + ... + 24852438.

It is an arithmetic number, because the mean of its divisors is an integer number (23334494550240).

Almost surely, 2^{266012331655101} is an apocalyptic number.

It is an amenable number.

266012331655101 is a deficient number, since it is larger than the sum of its proper divisors (107339581148739).

266012331655101 is a wasteful number, since it uses less digits than its factorization.

266012331655101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15898576.

The product of its (nonzero) digits is 194400, while the sum is 42.

Adding to 266012331655101 its reverse (101556133210662), we get a palindrome (367568464865763).

The spelling of 266012331655101 in words is "two hundred sixty-six trillion, twelve billion, three hundred thirty-one million, six hundred fifty-five thousand, one hundred one".