266004160405537 has 2 divisors, whose sum is σ = 266004160405538. Its totient is φ = 266004160405536.

The previous prime is 266004160405463. The next prime is 266004160405541. The reversal of 266004160405537 is 735504061400662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162051270564096 + 103952889841441 = 12729936^2 + 10195729^2 .

It is a cyclic number.

It is not a de Polignac number, because 266004160405537 - 2⁷ = 266004160405409 is a prime.

It is not a weakly prime, because it can be changed into another prime (266004160405567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133002080202768 + 133002080202769.

It is an arithmetic number, because the mean of its divisors is an integer number (133002080202769).

Almost surely, 2^{266004160405537} is an apocalyptic number.

It is an amenable number.

266004160405537 is a deficient number, since it is larger than the sum of its proper divisors (1).

266004160405537 is an equidigital number, since it uses as much as digits as its factorization.

266004160405537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 49.

The spelling of 266004160405537 in words is "two hundred sixty-six trillion, four billion, one hundred sixty million, four hundred five thousand, five hundred thirty-seven".