12115675456 has 28 divisors (see below), whose sum is σ = 24691833268. Its totient is φ = 5894111232.

The previous prime is 12115675423. The next prime is 12115675457. The reversal of 12115675456 is 65457651121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7708840000 + 4406835456 = 87800^2 + 66384^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115675457) 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, 2555841 + ... + 2560576.

Almost surely, 2^12115675456 is an apocalyptic number.

12115675456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12115675456 is an abundant number, since it is smaller than the sum of its proper divisors (12576157812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12115675456 is an equidigital number, since it uses as much as digits as its factorization.

12115675456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5116466 (or 5116456 counting only the distinct ones).

The product of its digits is 252000, while the sum is 43.

The spelling of 12115675456 in words is "twelve billion, one hundred fifteen million, six hundred seventy-five thousand, four hundred fifty-six".