266342066424 has 576 divisors, whose sum is σ = 915440292000. Its totient is φ = 69516195840.

The previous prime is 266342066411. The next prime is 266342066491. The reversal of 266342066424 is 424660243662.

266342066424 is a `hidden beast` number, since 2 + 6 + 634 + 2 + 0 + 6 + 6 + 4 + 2 + 4 = 666.

266342066424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 266342066424.

It is a congruent number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 216713842 + ... + 216715070.

Almost surely, 2^266342066424 is an apocalyptic number.

266342066424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266342066424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457720146000).

266342066424 is an abundant number, since it is smaller than the sum of its proper divisors (649098225576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266342066424 is a wasteful number, since it uses less digits than its factorization.

266342066424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388 (or 1374 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 45.

The spelling of 266342066424 in words is "two hundred sixty-six billion, three hundred forty-two million, sixty-six thousand, four hundred twenty-four".