12540444141505 has 8 divisors (see below), whose sum is σ = 17198323394112. Its totient is φ = 8599161697008.

The previous prime is 12540444141497. The next prime is 12540444141529. The reversal of 12540444141505 is 50514144404521.

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 12540444141505 - 2³ = 12540444141497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179149201987 + ... + 179149202056.

It is an arithmetic number, because the mean of its divisors is an integer number (2149790424264).

Almost surely, 2^{12540444141505} is an apocalyptic number.

It is an amenable number.

12540444141505 is a deficient number, since it is larger than the sum of its proper divisors (4657879252607).

12540444141505 is an equidigital number, since it uses as much as digits as its factorization.

12540444141505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358298404055.

The product of its (nonzero) digits is 256000, while the sum is 40.

The spelling of 12540444141505 in words is "twelve trillion, five hundred forty billion, four hundred forty-four million, one hundred forty-one thousand, five hundred five".