266446060561266 has 16 divisors (see below), whose sum is σ = 533195072889600. Its totient is φ = 88764861559248.

The previous prime is 266446060561231. The next prime is 266446060561277. The reversal of 266446060561266 is 662165060644662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12622978861 + ... + 12622999968.

It is an arithmetic number, because the mean of its divisors is an integer number (33324692055600).

Almost surely, 2^{266446060561266} is an apocalyptic number.

266446060561266 is an abundant number, since it is smaller than the sum of its proper divisors (266749012328334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266446060561266 is a wasteful number, since it uses less digits than its factorization.

266446060561266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25245980593.

The product of its (nonzero) digits is 89579520, while the sum is 60.

The spelling of 266446060561266 in words is "two hundred sixty-six trillion, four hundred forty-six billion, sixty million, five hundred sixty-one thousand, two hundred sixty-six".