266936000544 has 144 divisors (see below), whose sum is σ = 767867563008. Its totient is φ = 87956015616.

The previous prime is 266936000503. The next prime is 266936000579. The reversal of 266936000544 is 445000639662.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 266936000544.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10118379 + ... + 10144725.

It is an arithmetic number, because the mean of its divisors is an integer number (5332413632).

Almost surely, 2^266936000544 is an apocalyptic number.

266936000544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266936000544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383933781504).

266936000544 is an abundant number, since it is smaller than the sum of its proper divisors (500931562464).

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

266936000544 is a wasteful number, since it uses less digits than its factorization.

266936000544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26767 (or 26756 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 266936000544 in words is "two hundred sixty-six billion, nine hundred thirty-six million, five hundred forty-four", and thus it is an aban number.