12115050165 has 12 divisors (see below), whose sum is σ = 20999420364. Its totient is φ = 6461360064.

The previous prime is 12115050133. The next prime is 12115050173. The reversal of 12115050165 is 56105051121.

12115050165 is a `hidden beast` number, since 1 + 2 + 1 + 150 + 501 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6657091281 + 5457958884 = 81591^2 + 73878^2 .

It is not a de Polignac number, because 12115050165 - 2⁵ = 12115050133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134611624 + ... + 134611713.

It is an arithmetic number, because the mean of its divisors is an integer number (1749951697).

Almost surely, 2^12115050165 is an apocalyptic number.

12115050165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12115050165 is a deficient number, since it is larger than the sum of its proper divisors (8884370199).

12115050165 is a wasteful number, since it uses less digits than its factorization.

12115050165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269223348 (or 269223345 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

The spelling of 12115050165 in words is "twelve billion, one hundred fifteen million, fifty thousand, one hundred sixty-five".