266384004128 has 24 divisors (see below), whose sum is σ = 572120191440. Its totient is φ = 121083638080.

The previous prime is 266384004109. The next prime is 266384004157. The reversal of 266384004128 is 821400483662.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378386018 + ... + 378386721.

It is an arithmetic number, because the mean of its divisors is an integer number (23838341310).

Almost surely, 2^266384004128 is an apocalyptic number.

It is an amenable number.

266384004128 is an abundant number, since it is smaller than the sum of its proper divisors (305736187312).

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

266384004128 is a wasteful number, since it uses less digits than its factorization.

266384004128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756772760 (or 756772752 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 266384004128 in words is "two hundred sixty-six billion, three hundred eighty-four million, four thousand, one hundred twenty-eight".