266105104403436 has 144 divisors (see below), whose sum is σ = 696417388377984. Its totient is φ = 85626181214208.

The previous prime is 266105104403429. The next prime is 266105104403441. The reversal of 266105104403436 is 634304401501662.

266105104403436 is a `hidden beast` number, since 2 + 6 + 6 + 105 + 104 + 4 + 0 + 3 + 436 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 266105104403391 and 266105104403400.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 45321496 + ... + 50855168.

It is an arithmetic number, because the mean of its divisors is an integer number (4836231863736).

Almost surely, 2^{266105104403436} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266105104403436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348208694188992).

266105104403436 is an abundant number, since it is smaller than the sum of its proper divisors (430312283974548).

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

266105104403436 is a wasteful number, since it uses less digits than its factorization.

266105104403436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534120 (or 5534115 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 266105104403436 in words is "two hundred sixty-six trillion, one hundred five billion, one hundred four million, four hundred three thousand, four hundred thirty-six".