266012343331016 has 8 divisors (see below), whose sum is σ = 498773143745670. Its totient is φ = 133006171665504.

The previous prime is 266012343330961. The next prime is 266012343331109. The reversal of 266012343331016 is 610133343210662.

It can be written as a sum of positive squares in only one way, i.e., 160421223062500 + 105591120268516 = 12665750^2 + 10275754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16625771458181 + ... + 16625771458196.

Almost surely, 2^{266012343331016} is an apocalyptic number.

It is an amenable number.

266012343331016 is a deficient number, since it is larger than the sum of its proper divisors (232760800414654).

266012343331016 is a wasteful number, since it uses less digits than its factorization.

266012343331016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33251542916383 (or 33251542916379 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 41.

Adding to 266012343331016 its reverse (610133343210662), we get a palindrome (876145686541678).

The spelling of 266012343331016 in words is "two hundred sixty-six trillion, twelve billion, three hundred forty-three million, three hundred thirty-one thousand, sixteen".