266053650145121 has 8 divisors (see below), whose sum is σ = 266400227404584. Its totient is φ = 265707079073280.

The previous prime is 266053650145111. The next prime is 266053650145147. The reversal of 266053650145121 is 121541056350662.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 75043670700625 + 191009979444496 = 8662775^2 + 13820636^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266053650145121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266053650145111) 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 7 ways as a sum of consecutive naturals, for example, 87867761 + ... + 90845201.

It is an arithmetic number, because the mean of its divisors is an integer number (33300028425573).

Almost surely, 2^{266053650145121} is an apocalyptic number.

It is an amenable number.

266053650145121 is a deficient number, since it is larger than the sum of its proper divisors (346577259463).

266053650145121 is a wasteful number, since it uses less digits than its factorization.

266053650145121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3093811.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 266053650145121 in words is "two hundred sixty-six trillion, fifty-three billion, six hundred fifty million, one hundred forty-five thousand, one hundred twenty-one".