12136455165 has 16 divisors (see below), whose sum is σ = 19431370368. Its totient is φ = 6468428736.

The previous prime is 12136455157. The next prime is 12136455167. The reversal of 12136455165 is 56155463121.

It is not a de Polignac number, because 12136455165 - 2³ = 12136455157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12136455167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248569 + ... + 293358.

It is an arithmetic number, because the mean of its divisors is an integer number (1214460648).

Almost surely, 2^12136455165 is an apocalyptic number.

12136455165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12136455165 is a deficient number, since it is larger than the sum of its proper divisors (7294915203).

12136455165 is a wasteful number, since it uses less digits than its factorization.

12136455165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543428.

The product of its digits is 108000, while the sum is 39.

The spelling of 12136455165 in words is "twelve billion, one hundred thirty-six million, four hundred fifty-five thousand, one hundred sixty-five".