266044401111065 has 32 divisors (see below), whose sum is σ = 321256153886976. Its totient is φ = 211503530568960.

The previous prime is 266044401111061. The next prime is 266044401111109. The reversal of 266044401111065 is 560111104440662.

It is not a de Polignac number, because 266044401111065 - 2² = 266044401111061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266044401111061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2612402327 + ... + 2612504163.

It is an arithmetic number, because the mean of its divisors is an integer number (10039254808968).

Almost surely, 2^{266044401111065} is an apocalyptic number.

It is an amenable number.

266044401111065 is a deficient number, since it is larger than the sum of its proper divisors (55211752775911).

266044401111065 is a wasteful number, since it uses less digits than its factorization.

266044401111065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105809.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 266044401111065 in words is "two hundred sixty-six trillion, forty-four billion, four hundred one million, one hundred eleven thousand, sixty-five".