12255115440 has 80 divisors (see below), whose sum is σ = 38001505248. Its totient is φ = 3267115008.

The previous prime is 12255115427. The next prime is 12255115459. The reversal of 12255115440 is 4451155221.

12255115440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12255115398 and 12255115407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1626562 + ... + 1634078.

Almost surely, 2^12255115440 is an apocalyptic number.

12255115440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12255115440 is an abundant number, since it is smaller than the sum of its proper divisors (25746389808).

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

12255115440 is a wasteful number, since it uses less digits than its factorization.

12255115440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14326 (or 14320 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 12255115440 in words is "twelve billion, two hundred fifty-five million, one hundred fifteen thousand, four hundred forty".