266905832832 has 256 divisors, whose sum is σ = 817622208000. Its totient is φ = 85614520320.

The previous prime is 266905832827. The next prime is 266905832953. The reversal of 266905832832 is 238238509662.

266905832832 is a `hidden beast` number, since 2 + 6 + 6 + 9 + 0 + 583 + 28 + 32 = 666.

266905832832 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31165383 + ... + 31173945.

It is an arithmetic number, because the mean of its divisors is an integer number (3193836750).

Almost surely, 2^266905832832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266905832832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408811104000).

266905832832 is an abundant number, since it is smaller than the sum of its proper divisors (550716375168).

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

266905832832 is a wasteful number, since it uses less digits than its factorization.

266905832832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8926 (or 8908 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 266905832832 in words is "two hundred sixty-six billion, nine hundred five million, eight hundred thirty-two thousand, eight hundred thirty-two".