266020335560 has 48 divisors (see below), whose sum is σ = 696267516060. Its totient is φ = 91206971520.

The previous prime is 266020335541. The next prime is 266020335577. The reversal of 266020335560 is 65533020662.

266020335560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 265993936516 + 26399044 = 515746^2 + 5138^2 .

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 11 ways as a sum of consecutive naturals, for example, 67860371 + ... + 67864290.

Almost surely, 2^266020335560 is an apocalyptic number.

266020335560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266020335560 is an abundant number, since it is smaller than the sum of its proper divisors (430247180500).

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

266020335560 is a wasteful number, since it uses less digits than its factorization.

266020335560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135724686 (or 135724675 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 38.

The spelling of 266020335560 in words is "two hundred sixty-six billion, twenty million, three hundred thirty-five thousand, five hundred sixty".