10665120206 has 16 divisors (see below), whose sum is σ = 17246389104. Its totient is φ = 4917186624.

The previous prime is 10665120157. The next prime is 10665120239. The reversal of 10665120206 is 60202156601.

It is a super-2 number, since 2×10665120206² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 190436 + ... + 239991.

It is an arithmetic number, because the mean of its divisors is an integer number (1077899319).

Almost surely, 2^10665120206 is an apocalyptic number.

10665120206 is a deficient number, since it is larger than the sum of its proper divisors (6581268898).

10665120206 is a wasteful number, since it uses less digits than its factorization.

10665120206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431395.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 10665120206 its reverse (60202156601), we get a palindrome (70867276807).

The spelling of 10665120206 in words is "ten billion, six hundred sixty-five million, one hundred twenty thousand, two hundred six".