266275936128 has 64 divisors (see below), whose sum is σ = 731684984400. Its totient is φ = 85697998848.

The previous prime is 266275936127. The next prime is 266275936177. The reversal of 266275936128 is 821639572662.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266275936127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11944501 + ... + 11966772.

Almost surely, 2^266275936128 is an apocalyptic number.

It is an amenable number.

266275936128 is an abundant number, since it is smaller than the sum of its proper divisors (465409048272).

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

266275936128 is a wasteful number, since it uses less digits than its factorization.

266275936128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23911319 (or 23911307 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 266275936128 in words is "two hundred sixty-six billion, two hundred seventy-five million, nine hundred thirty-six thousand, one hundred twenty-eight".