12546531452240 has 80 divisors (see below), whose sum is σ = 30246706753536. Its totient is φ = 4834942617600.

The previous prime is 12546531452227. The next prime is 12546531452267. The reversal of 12546531452240 is 4225413564521.

12546531452240 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 junction number, because it is equal to n+sod(n) for n = 12546531452191 and 12546531452200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10790201 + ... + 11896280.

Almost surely, 2^{12546531452240} is an apocalyptic number.

12546531452240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12546531452240 is an abundant number, since it is smaller than the sum of its proper divisors (17700175301296).

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

12546531452240 is a wasteful number, since it uses less digits than its factorization.

12546531452240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22686748 (or 22686742 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 12546531452240 in words is "twelve trillion, five hundred forty-six billion, five hundred thirty-one million, four hundred fifty-two thousand, two hundred forty".