102206155165 has 8 divisors (see below), whose sum is σ = 122690695608. Its totient is φ = 81736051200.

The previous prime is 102206155159. The next prime is 102206155187. The reversal of 102206155165 is 561551602201.

It can be written as a sum of positive squares in 4 ways, for example, as 8181745209 + 94024409956 = 90453^2 + 306634^2 .

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

It is not a de Polignac number, because 102206155165 - 2¹¹ = 102206153117 is a prime.

It is a super-2 number, since 2×102206155165² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102206155165.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3593536 + ... + 3621865.

It is an arithmetic number, because the mean of its divisors is an integer number (15336336951).

Almost surely, 2^102206155165 is an apocalyptic number.

It is an amenable number.

102206155165 is a deficient number, since it is larger than the sum of its proper divisors (20484540443).

102206155165 is an equidigital number, since it uses as much as digits as its factorization.

102206155165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7218239.

The product of its (nonzero) digits is 18000, while the sum is 34.

Adding to 102206155165 its reverse (561551602201), we get a palindrome (663757757366).

The spelling of 102206155165 in words is "one hundred two billion, two hundred six million, one hundred fifty-five thousand, one hundred sixty-five".