12104040745615 has 64 divisors (see below), whose sum is σ = 18823285232640. Its totient is φ = 7256038164480.

The previous prime is 12104040745543. The next prime is 12104040745627. The reversal of 12104040745615 is 51654704040121.

It is a happy number.

It is not a de Polignac number, because 12104040745615 - 2¹⁷ = 12104040614543 is a prime.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 28725655 + ... + 29143975.

It is an arithmetic number, because the mean of its divisors is an integer number (294113831760).

Almost surely, 2^{12104040745615} is an apocalyptic number.

12104040745615 is a deficient number, since it is larger than the sum of its proper divisors (6719244487025).

12104040745615 is a wasteful number, since it uses less digits than its factorization.

12104040745615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421712.

The product of its (nonzero) digits is 134400, while the sum is 40.

Adding to 12104040745615 its reverse (51654704040121), we get a palindrome (63758744785736).

The spelling of 12104040745615 in words is "twelve trillion, one hundred four billion, forty million, seven hundred forty-five thousand, six hundred fifteen".