266121044542316 has 24 divisors (see below), whose sum is σ = 486417327615744. Its totient is φ = 127155549969360.

The previous prime is 266121044542279. The next prime is 266121044542351. The reversal of 266121044542316 is 613245440121662.

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, 1360494890 + ... + 1360690481.

It is an arithmetic number, because the mean of its divisors is an integer number (20267388650656).

Almost surely, 2^{266121044542316} is an apocalyptic number.

It is an amenable number.

266121044542316 is a deficient number, since it is larger than the sum of its proper divisors (220296283073428).

266121044542316 is a wasteful number, since it uses less digits than its factorization.

266121044542316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721186461 (or 2721186459 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 47.

Adding to 266121044542316 its reverse (613245440121662), we get a palindrome (879366484663978).

The spelling of 266121044542316 in words is "two hundred sixty-six trillion, one hundred twenty-one billion, forty-four million, five hundred forty-two thousand, three hundred sixteen".