12651112605 has 8 divisors (see below), whose sum is σ = 20241780192. Its totient is φ = 6747260048.

The previous prime is 12651112601. The next prime is 12651112609. The reversal of 12651112605 is 50621115621.

It is an interprime number because it is at equal distance from previous prime (12651112601) and next prime (12651112609).

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 12651112605 - 2² = 12651112601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12651112601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421703739 + ... + 421703768.

It is an arithmetic number, because the mean of its divisors is an integer number (2530222524).

Almost surely, 2^12651112605 is an apocalyptic number.

12651112605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12651112605 is a deficient number, since it is larger than the sum of its proper divisors (7590667587).

12651112605 is an equidigital number, since it uses as much as digits as its factorization.

12651112605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843407515.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 12651112605 in words is "twelve billion, six hundred fifty-one million, one hundred twelve thousand, six hundred five".