266504109245 has 32 divisors (see below), whose sum is σ = 351298805760. Its totient is φ = 192480805440.

The previous prime is 266504109241. The next prime is 266504109257. The reversal of 266504109245 is 542901405662.

It is not a de Polignac number, because 266504109245 - 2² = 266504109241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266504109196 and 266504109205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266504109241) 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, 4796594 + ... + 4851836.

It is an arithmetic number, because the mean of its divisors is an integer number (10978087680).

Almost surely, 2^266504109245 is an apocalyptic number.

It is an amenable number.

266504109245 is a deficient number, since it is larger than the sum of its proper divisors (84794696515).

266504109245 is a wasteful number, since it uses less digits than its factorization.

266504109245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55865.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 266504109245 in words is "two hundred sixty-six billion, five hundred four million, one hundred nine thousand, two hundred forty-five".