12054240012515 has 16 divisors (see below), whose sum is σ = 14627968410816. Its totient is φ = 9535062096000.

The previous prime is 12054240012499. The next prime is 12054240012541. The reversal of 12054240012515 is 51521004245021.

It is not a de Polignac number, because 12054240012515 - 2⁴ = 12054240012499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15687896 + ... + 16438325.

It is an arithmetic number, because the mean of its divisors is an integer number (914248025676).

Almost surely, 2^{12054240012515} is an apocalyptic number.

12054240012515 is a deficient number, since it is larger than the sum of its proper divisors (2573728398301).

12054240012515 is a wasteful number, since it uses less digits than its factorization.

12054240012515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32127070.

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 12054240012515 its reverse (51521004245021), we get a palindrome (63575244257536).

The spelling of 12054240012515 in words is "twelve trillion, fifty-four billion, two hundred forty million, twelve thousand, five hundred fifteen".