266504545461 has 256 divisors, whose sum is σ = 481998274560. Its totient is φ = 127031224320.

The previous prime is 266504545459. The next prime is 266504545471. The reversal of 266504545461 is 164545405662.

It is a happy number.

266504545461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 266504545461 - 2¹ = 266504545459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 266504545461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266504545441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1945288585 + ... + 1945288721.

It is an arithmetic number, because the mean of its divisors is an integer number (1882805760).

Almost surely, 2^266504545461 is an apocalyptic number.

266504545461 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

266504545461 is a deficient number, since it is larger than the sum of its proper divisors (215493729099).

266504545461 is a wasteful number, since it uses less digits than its factorization.

266504545461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 266504545461 in words is "two hundred sixty-six billion, five hundred four million, five hundred forty-five thousand, four hundred sixty-one".