12170070165 has 32 divisors (see below), whose sum is σ = 21251059200. Its totient is φ = 5898208320.

The previous prime is 12170070131. The next prime is 12170070181. The reversal of 12170070165 is 56107007121.

It is not a de Polignac number, because 12170070165 - 2⁷ = 12170070037 is a prime.

It is a super-2 number, since 2×12170070165² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424866 + ... + 452604.

It is an arithmetic number, because the mean of its divisors is an integer number (664095600).

Almost surely, 2^12170070165 is an apocalyptic number.

12170070165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12170070165 is a deficient number, since it is larger than the sum of its proper divisors (9080989035).

12170070165 is a wasteful number, since it uses less digits than its factorization.

12170070165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30417.

The product of its (nonzero) digits is 2940, while the sum is 30.

Adding to 12170070165 its reverse (56107007121), we get a palindrome (68277077286).

The spelling of 12170070165 in words is "twelve billion, one hundred seventy million, seventy thousand, one hundred sixty-five".