266068972689 has 8 divisors (see below), whose sum is σ = 382047755712. Its totient is φ = 163734752400.

The previous prime is 266068972681. The next prime is 266068972721. The reversal of 266068972689 is 986279860662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 266068972689 - 2³ = 266068972681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266068972681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3411140637 + ... + 3411140714.

It is an arithmetic number, because the mean of its divisors is an integer number (47755969464).

Almost surely, 2^266068972689 is an apocalyptic number.

It is an amenable number.

266068972689 is a deficient number, since it is larger than the sum of its proper divisors (115978783023).

266068972689 is a wasteful number, since it uses less digits than its factorization.

266068972689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6822281367.

The product of its (nonzero) digits is 188116992, while the sum is 69.

The spelling of 266068972689 in words is "two hundred sixty-six billion, sixty-eight million, nine hundred seventy-two thousand, six hundred eighty-nine".