12366998155 has 4 divisors (see below), whose sum is σ = 14840397792. Its totient is φ = 9893598520.

The previous prime is 12366998153. The next prime is 12366998167. The reversal of 12366998155 is 55189966321.

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

It is not a de Polignac number, because 12366998155 - 2¹ = 12366998153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12366998096 and 12366998105.

It is not an unprimeable number, because it can be changed into a prime (12366998153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236699811 + ... + 1236699820.

It is an arithmetic number, because the mean of its divisors is an integer number (3710099448).

Almost surely, 2^12366998155 is an apocalyptic number.

12366998155 is a deficient number, since it is larger than the sum of its proper divisors (2473399637).

12366998155 is an equidigital number, since it uses as much as digits as its factorization.

12366998155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473399636.

The product of its digits is 3499200, while the sum is 55.

The spelling of 12366998155 in words is "twelve billion, three hundred sixty-six million, nine hundred ninety-eight thousand, one hundred fifty-five".