55106665165 has 8 divisors (see below), whose sum is σ = 66130585848. Its totient is φ = 44083607040.

The previous prime is 55106665153. The next prime is 55106665171. The reversal of 55106665165 is 56156660155.

It can be written as a sum of positive squares in 4 ways, for example, as 16996597641 + 38110067524 = 130371^2 + 195218^2 .

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

It is not a de Polignac number, because 55106665165 - 2⁷ = 55106665037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65592 + ... + 338401.

It is an arithmetic number, because the mean of its divisors is an integer number (8266323231).

Almost surely, 2^55106665165 is an apocalyptic number.

It is an amenable number.

55106665165 is a deficient number, since it is larger than the sum of its proper divisors (11023920683).

55106665165 is a wasteful number, since it uses less digits than its factorization.

55106665165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431279.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 55106665165 in words is "fifty-five billion, one hundred six million, six hundred sixty-five thousand, one hundred sixty-five".