266680695841 has 8 divisors (see below), whose sum is σ = 308952978944. Its totient is φ = 225452172960.

The previous prime is 266680695797. The next prime is 266680695847. The reversal of 266680695841 is 148596086662.

266680695841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 266680695841 - 2¹¹ = 266680693793 is a prime.

It is a super-2 number, since 2×266680695841² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 266680695841.

It is not an unprimeable number, because it can be changed into a prime (266680695847) 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, 260939505 + ... + 260940526.

It is an arithmetic number, because the mean of its divisors is an integer number (38619122368).

Almost surely, 2^266680695841 is an apocalyptic number.

It is an amenable number.

266680695841 is a deficient number, since it is larger than the sum of its proper divisors (42272283103).

266680695841 is an equidigital number, since it uses as much as digits as its factorization.

266680695841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521880111.

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 266680695841 in words is "two hundred sixty-six billion, six hundred eighty million, six hundred ninety-five thousand, eight hundred forty-one".