12305006115440 has 20 divisors (see below), whose sum is σ = 28609139218584. Its totient is φ = 4922002446144.

The previous prime is 12305006115427. The next prime is 12305006115461. The reversal of 12305006115440 is 4451160050321.

12305006115440 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 (20).

It is a junction number, because it is equal to n+sod(n) for n = 12305006115397 and 12305006115406.

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, 76906288142 + ... + 76906288301.

Almost surely, 2^{12305006115440} is an apocalyptic number.

12305006115440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12305006115440 is an abundant number, since it is smaller than the sum of its proper divisors (16304133103144).

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

12305006115440 is a wasteful number, since it uses less digits than its factorization.

12305006115440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153812576456 (or 153812576450 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 12305006115440 its reverse (4451160050321), we get a palindrome (16756166165761).

The spelling of 12305006115440 in words is "twelve trillion, three hundred five billion, six million, one hundred fifteen thousand, four hundred forty".