10666206253 has 4 divisors (see below), whose sum is σ = 10680758428. Its totient is φ = 10651654080.

The previous prime is 10666206241. The next prime is 10666206281. The reversal of 10666206253 is 35260266601.

10666206253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9758871369 + 907334884 = 98787^2 + 30122^2 .

It is a cyclic number.

It is not a de Polignac number, because 10666206253 - 2⁹ = 10666205741 is a prime.

It is a super-2 number, since 2×10666206253² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10666200253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7274988 + ... + 7276453.

It is an arithmetic number, because the mean of its divisors is an integer number (2670189607).

Almost surely, 2^10666206253 is an apocalyptic number.

It is an amenable number.

10666206253 is a deficient number, since it is larger than the sum of its proper divisors (14552175).

10666206253 is an equidigital number, since it uses as much as digits as its factorization.

10666206253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14552174.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 10666206253 in words is "ten billion, six hundred sixty-six million, two hundred six thousand, two hundred fifty-three".