266956402132848 has 40 divisors (see below), whose sum is σ = 694598792137600. Its totient is φ = 88345284156864.

The previous prime is 266956402132843. The next prime is 266956402132909. The reversal of 266956402132848 is 848231204659662.

It is a super-2 number, since 2×266956402132848² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266956402132843) 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, 20005718908 + ... + 20005732251.

It is an arithmetic number, because the mean of its divisors is an integer number (17364969803440).

Almost surely, 2^{266956402132848} is an apocalyptic number.

It is an amenable number.

266956402132848 is an abundant number, since it is smaller than the sum of its proper divisors (427642390004752).

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

266956402132848 is a wasteful number, since it uses less digits than its factorization.

266956402132848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40011451309 (or 40011451303 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 66.

The spelling of 266956402132848 in words is "two hundred sixty-six trillion, nine hundred fifty-six billion, four hundred two million, one hundred thirty-two thousand, eight hundred forty-eight".