266041540023122 has 4 divisors (see below), whose sum is σ = 399062310034686. Its totient is φ = 133020770011560.

The previous prime is 266041540023113. The next prime is 266041540023139. The reversal of 266041540023122 is 221320045140662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 254541634918321 + 11499905104801 = 15954361^2 + 3391151^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66510385005779 + ... + 66510385005782.

Almost surely, 2^{266041540023122} is an apocalyptic number.

266041540023122 is a deficient number, since it is larger than the sum of its proper divisors (133020770011564).

266041540023122 is a wasteful number, since it uses less digits than its factorization.

266041540023122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133020770011563.

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 266041540023122 its reverse (221320045140662), we get a palindrome (487361585163784).

The spelling of 266041540023122 in words is "two hundred sixty-six trillion, forty-one billion, five hundred forty million, twenty-three thousand, one hundred twenty-two".