12186850055 has 4 divisors (see below), whose sum is σ = 14624220072. Its totient is φ = 9749480040.

The previous prime is 12186850037. The next prime is 12186850069. The reversal of 12186850055 is 55005868121.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-12186850055 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12186849994 and 12186850021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1218685001 + ... + 1218685010.

It is an arithmetic number, because the mean of its divisors is an integer number (3656055018).

Almost surely, 2^12186850055 is an apocalyptic number.

12186850055 is a deficient number, since it is larger than the sum of its proper divisors (2437370017).

12186850055 is an equidigital number, since it uses as much as digits as its factorization.

12186850055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437370016.

The product of its (nonzero) digits is 96000, while the sum is 41.

The spelling of 12186850055 in words is "twelve billion, one hundred eighty-six million, eight hundred fifty thousand, fifty-five".