1266865068 has 96 divisors (see below), whose sum is σ = 3508807680. Its totient is φ = 348226560.

The previous prime is 1266865013. The next prime is 1266865069. The reversal of 1266865068 is 8605686621.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1266865069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248893 + ... + 253931.

It is an arithmetic number, because the mean of its divisors is an integer number (36550080).

Almost surely, 2^1266865068 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 1266865068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1754403840).

1266865068 is an abundant number, since it is smaller than the sum of its proper divisors (2241942612).

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

1266865068 is a wasteful number, since it uses less digits than its factorization.

1266865068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5167 (or 5165 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 1266865068 is about 35593.0480290744. The cubic root of 1266865068 is about 1082.0403439002.

The spelling of 1266865068 in words is "one billion, two hundred sixty-six million, eight hundred sixty-five thousand, sixty-eight".