266044006405655 has 8 divisors (see below), whose sum is σ = 319256560095984. Its totient is φ = 212832703518400.

The previous prime is 266044006405637. The next prime is 266044006405679. The reversal of 266044006405655 is 556504600440662.

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

It is a de Polignac number, because none of the positive numbers 2^k-266044006405655 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266044006405597 and 266044006405606.

It is a congruent number.

It is an unprimeable number.

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, 312232766 + ... + 313083675.

It is an arithmetic number, because the mean of its divisors is an integer number (39907070011998).

Almost surely, 2^{266044006405655} is an apocalyptic number.

266044006405655 is a deficient number, since it is larger than the sum of its proper divisors (53212553690329).

266044006405655 is an equidigital number, since it uses as much as digits as its factorization.

266044006405655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625401537.

The product of its (nonzero) digits is 20736000, while the sum is 53.

The spelling of 266044006405655 in words is "two hundred sixty-six trillion, forty-four billion, six million, four hundred five thousand, six hundred fifty-five".