10506656165 has 8 divisors (see below), whose sum is σ = 12814676088. Its totient is φ = 8267532480.

The previous prime is 10506656159. The next prime is 10506656191. The reversal of 10506656165 is 56165660501.

It can be written as a sum of positive squares in 4 ways, for example, as 102860164 + 10403796001 = 10142^2 + 101999^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10506656165 - 2⁶ = 10506656101 is a prime.

It is a super-2 number, since 2×10506656165² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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, 17223722 + ... + 17224331.

It is an arithmetic number, because the mean of its divisors is an integer number (1601834511).

Almost surely, 2^10506656165 is an apocalyptic number.

It is an amenable number.

10506656165 is a deficient number, since it is larger than the sum of its proper divisors (2308019923).

10506656165 is an equidigital number, since it uses as much as digits as its factorization.

10506656165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34448119.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 10506656165 in words is "ten billion, five hundred six million, six hundred fifty-six thousand, one hundred sixty-five".