266842299008 has 64 divisors (see below), whose sum is σ = 564440011200. Its totient is φ = 125222694912.

The previous prime is 266842298977. The next prime is 266842299067. The reversal of 266842299008 is 800992248662.

It is a tau number, because it is divible by the number of its divisors (64).

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, 610391 + ... + 951977.

It is an arithmetic number, because the mean of its divisors is an integer number (8819375175).

Almost surely, 2^266842299008 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 266842299008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282220005600).

266842299008 is an abundant number, since it is smaller than the sum of its proper divisors (297597712192).

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

266842299008 is a wasteful number, since it uses less digits than its factorization.

266842299008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341977 (or 341965 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 56.

The spelling of 266842299008 in words is "two hundred sixty-six billion, eight hundred forty-two million, two hundred ninety-nine thousand, eight".