605211640660266 has 64 divisors (see below), whose sum is σ = 1241435476794240. Its totient is φ = 196629361367040.

The previous prime is 605211640660213. The next prime is 605211640660267. The reversal of 605211640660266 is 662066046112506.

It is a super-2 number, since 2×605211640660266² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (605211640660267) 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 31 ways as a sum of consecutive naturals, for example, 180687921 + ... + 184006923.

It is an arithmetic number, because the mean of its divisors is an integer number (19397429324910).

Almost surely, 2^{605211640660266} is an apocalyptic number.

605211640660266 is an abundant number, since it is smaller than the sum of its proper divisors (636223836133974).

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

605211640660266 is a wasteful number, since it uses less digits than its factorization.

605211640660266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323591.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 605211640660266 in words is "six hundred five trillion, two hundred eleven billion, six hundred forty million, six hundred sixty thousand, two hundred sixty-six".