266121751348 has 12 divisors (see below), whose sum is σ = 465754877280. Its totient is φ = 133048929272.

The previous prime is 266121751333. The next prime is 266121751349. The reversal of 266121751348 is 843157121662.

It is a junction number, because it is equal to n+sod(n) for n = 266121751298 and 266121751307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266121751349) 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 3 ways as a sum of consecutive naturals, for example, 2936386 + ... + 3025657.

It is an arithmetic number, because the mean of its divisors is an integer number (38812906440).

Almost surely, 2^266121751348 is an apocalyptic number.

It is an amenable number.

266121751348 is a deficient number, since it is larger than the sum of its proper divisors (199633125932).

266121751348 is a wasteful number, since it uses less digits than its factorization.

266121751348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5973206 (or 5973204 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

The spelling of 266121751348 in words is "two hundred sixty-six billion, one hundred twenty-one million, seven hundred fifty-one thousand, three hundred forty-eight".