266006536261653 has 32 divisors (see below), whose sum is σ = 416622219448320. Its totient is φ = 149161041493760.

The previous prime is 266006536261597. The next prime is 266006536261663. The reversal of 266006536261653 is 356162635600662.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 266006536261653 - 2¹⁶ = 266006536196117 is a prime.

It is a super-2 number, since 2×266006536261653² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 266006536261593 and 266006536261602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266006536261663) 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, 4018313925 + ... + 4018380122.

It is an arithmetic number, because the mean of its divisors is an integer number (13019444357760).

Almost surely, 2^{266006536261653} is an apocalyptic number.

It is an amenable number.

266006536261653 is a deficient number, since it is larger than the sum of its proper divisors (150615683186667).

266006536261653 is a wasteful number, since it uses less digits than its factorization.

266006536261653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036694137.

The product of its (nonzero) digits is 41990400, while the sum is 57.

The spelling of 266006536261653 in words is "two hundred sixty-six trillion, six billion, five hundred thirty-six million, two hundred sixty-one thousand, six hundred fifty-three".