266145052124212 has 6 divisors (see below), whose sum is σ = 465753841217378. Its totient is φ = 133072526062104.

The previous prime is 266145052124183. The next prime is 266145052124221. The reversal of 266145052124212 is 212421250541662.

It can be written as a sum of positive squares in only one way, i.e., 261382688667556 + 4762363456656 = 16167334^2 + 2182284^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33268131515523 + ... + 33268131515530.

Almost surely, 2^{266145052124212} is an apocalyptic number.

It is an amenable number.

266145052124212 is a deficient number, since it is larger than the sum of its proper divisors (199608789093166).

266145052124212 is a wasteful number, since it uses less digits than its factorization.

266145052124212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66536263031057 (or 66536263031055 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 266145052124212 in words is "two hundred sixty-six trillion, one hundred forty-five billion, fifty-two million, one hundred twenty-four thousand, two hundred twelve".