266004161232223 has 4 divisors (see below), whose sum is σ = 266667513255648. Its totient is φ = 265340809208800.

The previous prime is 266004161232107. The next prime is 266004161232233. The reversal of 266004161232223 is 322232161400662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 266004161232223 - 2¹³ = 266004161224031 is a prime.

It is a super-2 number, since 2×266004161232223² (a number of 30 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266004161232233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331676011111 + ... + 331676011912.

It is an arithmetic number, because the mean of its divisors is an integer number (66666878313912).

Almost surely, 2^{266004161232223} is an apocalyptic number.

266004161232223 is a deficient number, since it is larger than the sum of its proper divisors (663352023425).

266004161232223 is an equidigital number, since it uses as much as digits as its factorization.

266004161232223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663352023424.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 266004161232223 in words is "two hundred sixty-six trillion, four billion, one hundred sixty-one million, two hundred thirty-two thousand, two hundred twenty-three".