266844528420 has 24 divisors (see below), whose sum is σ = 747164679744. Its totient is φ = 71158540896.

The previous prime is 266844528407. The next prime is 266844528443. The reversal of 266844528420 is 24825448662.

266844528420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 2223704344 + ... + 2223704463.

It is an arithmetic number, because the mean of its divisors is an integer number (31131861656).

Almost surely, 2^266844528420 is an apocalyptic number.

266844528420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266844528420 is an abundant number, since it is smaller than the sum of its proper divisors (480320151324).

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

266844528420 is a wasteful number, since it uses less digits than its factorization.

266844528420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447408819 (or 4447408817 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 51.

The spelling of 266844528420 in words is "two hundred sixty-six billion, eight hundred forty-four million, five hundred twenty-eight thousand, four hundred twenty".