266929052881 has 8 divisors (see below), whose sum is σ = 282820601160. Its totient is φ = 251058597888.

The previous prime is 266929052833. The next prime is 266929052921. The reversal of 266929052881 is 188250929662.

266929052881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 110097212481 + 156831840400 = 331809^2 + 396020^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 266929052881 - 2¹³ = 266929044689 is a prime.

It is a super-2 number, since 2×266929052881² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266929052981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5247256 + ... + 5297881.

It is an arithmetic number, because the mean of its divisors is an integer number (35352575145).

Almost surely, 2^266929052881 is an apocalyptic number.

It is an amenable number.

266929052881 is a deficient number, since it is larger than the sum of its proper divisors (15891548279).

266929052881 is a wasteful number, since it uses less digits than its factorization.

266929052881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10546643.

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 266929052881 in words is "two hundred sixty-six billion, nine hundred twenty-nine million, fifty-two thousand, eight hundred eighty-one".