266103660423 has 16 divisors (see below), whose sum is σ = 362578876416. Its totient is φ = 173520129120.

The previous prime is 266103660419. The next prime is 266103660461. The reversal of 266103660423 is 324066301662.

It is not a de Polignac number, because 266103660423 - 2² = 266103660419 is a prime.

It is a super-2 number, since 2×266103660423² (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 (266103664423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357583 + ... + 812448.

It is an arithmetic number, because the mean of its divisors is an integer number (22661179776).

Almost surely, 2^266103660423 is an apocalyptic number.

266103660423 is a deficient number, since it is larger than the sum of its proper divisors (96475215993).

266103660423 is a wasteful number, since it uses less digits than its factorization.

266103660423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171694.

The product of its (nonzero) digits is 186624, while the sum is 39.

The spelling of 266103660423 in words is "two hundred sixty-six billion, one hundred three million, six hundred sixty thousand, four hundred twenty-three".