12698545165 has 8 divisors (see below), whose sum is σ = 16134622200. Its totient is φ = 9561257472.

The previous prime is 12698545127. The next prime is 12698545183. The reversal of 12698545165 is 56154589621.

12698545165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3079251081 + 9619294084 = 55491^2 + 98078^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12698545165 - 2¹³ = 12698536973 is a prime.

It is a super-2 number, since 2×12698545165² (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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74697240 + ... + 74697409.

It is an arithmetic number, because the mean of its divisors is an integer number (2016827775).

Almost surely, 2^12698545165 is an apocalyptic number.

It is an amenable number.

12698545165 is a deficient number, since it is larger than the sum of its proper divisors (3436077035).

12698545165 is a wasteful number, since it uses less digits than its factorization.

12698545165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149394671.

The product of its digits is 2592000, while the sum is 52.

The spelling of 12698545165 in words is "twelve billion, six hundred ninety-eight million, five hundred forty-five thousand, one hundred sixty-five".