266546441243101 has 8 divisors (see below), whose sum is σ = 267580493950680. Its totient is φ = 265512708341568.

The previous prime is 266546441242951. The next prime is 266546441243123. The reversal of 266546441243101 is 101342144645662.

It can be written as a sum of positive squares in 4 ways, for example, as 5461405411225 + 261085035831876 = 2336965^2 + 16158126^2 .

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 266546441243101 - 2⁹ = 266546441242589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266546441243161) 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, 78281286 + ... + 81615271.

It is an arithmetic number, because the mean of its divisors is an integer number (33447561743835).

Almost surely, 2^{266546441243101} is an apocalyptic number.

It is an amenable number.

266546441243101 is a deficient number, since it is larger than the sum of its proper divisors (1034052707579).

266546441243101 is a wasteful number, since it uses less digits than its factorization.

266546441243101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159903023.

The product of its (nonzero) digits is 3317760, while the sum is 49.

Adding to 266546441243101 its reverse (101342144645662), we get a palindrome (367888585888763).

The spelling of 266546441243101 in words is "two hundred sixty-six trillion, five hundred forty-six billion, four hundred forty-one million, two hundred forty-three thousand, one hundred one".