266421341343 has 8 divisors (see below), whose sum is σ = 355278452400. Its totient is φ = 177589228928.

The previous prime is 266421341339. The next prime is 266421341401. The reversal of 266421341343 is 343143124662.

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 266421341343 - 2² = 266421341339 is a prime.

It is a super-2 number, since 2×266421341343² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266421341323) 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, 6224778 + ... + 6267431.

It is an arithmetic number, because the mean of its divisors is an integer number (44409806550).

Almost surely, 2^266421341343 is an apocalyptic number.

266421341343 is a deficient number, since it is larger than the sum of its proper divisors (88857111057).

266421341343 is a wasteful number, since it uses less digits than its factorization.

266421341343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12499321.

The product of its digits is 248832, while the sum is 39.

The spelling of 266421341343 in words is "two hundred sixty-six billion, four hundred twenty-one million, three hundred forty-one thousand, three hundred forty-three".