65266044661133 has 8 divisors (see below), whose sum is σ = 68136016258200. Its totient is φ = 62437367619648.

The previous prime is 65266044661093. The next prime is 65266044661159. The reversal of 65266044661133 is 33116644066256.

It can be written as a sum of positive squares in 4 ways, for example, as 22405624637764 + 42860420023369 = 4733458^2 + 6546787^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 65266044661133 - 2⁸ = 65266044660877 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 (65266044661193) 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, 10323635666 + ... + 10323641987.

It is an arithmetic number, because the mean of its divisors is an integer number (8517002032275).

Almost surely, 2^{65266044661133} is an apocalyptic number.

It is an amenable number.

65266044661133 is a deficient number, since it is larger than the sum of its proper divisors (2869971597067).

65266044661133 is a wasteful number, since it uses less digits than its factorization.

65266044661133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20647277791.

The product of its (nonzero) digits is 11197440, while the sum is 53.

The spelling of 65266044661133 in words is "sixty-five trillion, two hundred sixty-six billion, forty-four million, six hundred sixty-one thousand, one hundred thirty-three".