266043540564125 has 16 divisors (see below), whose sum is σ = 332109187857408. Its totient is φ = 212779159866000.

The previous prime is 266043540564089. The next prime is 266043540564133. The reversal of 266043540564125 is 521465045340662.

It is not a de Polignac number, because 266043540564125 - 2⁸ = 266043540563869 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 277883141 + ... + 278838890.

It is an arithmetic number, because the mean of its divisors is an integer number (20756824241088).

Almost surely, 2^{266043540564125} is an apocalyptic number.

266043540564125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266043540564125 is a deficient number, since it is larger than the sum of its proper divisors (66065647293283).

266043540564125 is an equidigital number, since it uses as much as digits as its factorization.

266043540564125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556725869 (or 556725859 counting only the distinct ones).

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

The spelling of 266043540564125 in words is "two hundred sixty-six trillion, forty-three billion, five hundred forty million, five hundred sixty-four thousand, one hundred twenty-five".