266933335968 has 576 divisors, whose sum is σ = 889945056000. Its totient is φ = 75209637888.

The previous prime is 266933335937. The next prime is 266933335969. The reversal of 266933335968 is 869533339662.

266933335968 is a `hidden beast` number, since 2 + 6 + 6 + 9 + 3 + 3 + 33 + 596 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (266933335969) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 347117088 + ... + 347117856.

It is an arithmetic number, because the mean of its divisors is an integer number (1545043500).

Almost surely, 2^266933335968 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 266933335968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444972528000).

266933335968 is an abundant number, since it is smaller than the sum of its proper divisors (623011720032).

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

266933335968 is a wasteful number, since it uses less digits than its factorization.

266933335968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989 (or 978 counting only the distinct ones).

The product of its digits is 113374080, while the sum is 63.

The spelling of 266933335968 in words is "two hundred sixty-six billion, nine hundred thirty-three million, three hundred thirty-five thousand, nine hundred sixty-eight".