266552066202461 has 32 divisors (see below), whose sum is σ = 306942996864000. Its totient is φ = 229425061436928.

The previous prime is 266552066202421. The next prime is 266552066202491. The reversal of 266552066202461 is 164202660255662.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266552066202461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266552066202421) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 6794246 + ... + 24067943.

It is an arithmetic number, because the mean of its divisors is an integer number (9591968652000).

Almost surely, 2^{266552066202461} is an apocalyptic number.

It is an amenable number.

266552066202461 is a deficient number, since it is larger than the sum of its proper divisors (40390930661539).

266552066202461 is a wasteful number, since it uses less digits than its factorization.

266552066202461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30862773.

The product of its (nonzero) digits is 12441600, while the sum is 53.

The spelling of 266552066202461 in words is "two hundred sixty-six trillion, five hundred fifty-two billion, sixty-six million, two hundred two thousand, four hundred sixty-one".