266006665264653 has 12 divisors (see below), whose sum is σ = 384232054034400. Its totient is φ = 177337682593416.

The previous prime is 266006665264621. The next prime is 266006665264661. The reversal of 266006665264653 is 356462566600662.

It is not a de Polignac number, because 266006665264653 - 2⁵ = 266006665264621 is a prime.

It is a super-2 number, since 2×266006665264653² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266006665264663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12910000 + ... + 26432582.

It is an arithmetic number, because the mean of its divisors is an integer number (32019337836200).

Almost surely, 2^{266006665264653} is an apocalyptic number.

It is an amenable number.

266006665264653 is a deficient number, since it is larger than the sum of its proper divisors (118225388769747).

266006665264653 is a wasteful number, since it uses less digits than its factorization.

266006665264653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15708288 (or 15708285 counting only the distinct ones).

The product of its (nonzero) digits is 335923200, while the sum is 63.

The spelling of 266006665264653 in words is "two hundred sixty-six trillion, six billion, six hundred sixty-five million, two hundred sixty-four thousand, six hundred fifty-three".