266613254523461 has 4 divisors (see below), whose sum is σ = 275806815024300. Its totient is φ = 257419694022624.

The previous prime is 266613254523331. The next prime is 266613254523509. The reversal of 266613254523461 is 164325452316662.

266613254523461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85139189868100 + 181474064655361 = 9227090^2 + 13471231^2 .

It is a cyclic number.

It is not a de Polignac number, because 266613254523461 - 2²⁶ = 266613187414597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266613254523397 and 266613254523406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266613254523661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4596780250376 + ... + 4596780250433.

It is an arithmetic number, because the mean of its divisors is an integer number (68951703756075).

Almost surely, 2^{266613254523461} is an apocalyptic number.

It is an amenable number.

266613254523461 is a deficient number, since it is larger than the sum of its proper divisors (9193560500839).

266613254523461 is an equidigital number, since it uses as much as digits as its factorization.

266613254523461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9193560500838.

The product of its digits is 37324800, while the sum is 56.

The spelling of 266613254523461 in words is "two hundred sixty-six trillion, six hundred thirteen billion, two hundred fifty-four million, five hundred twenty-three thousand, four hundred sixty-one".