12104215315555 has 32 divisors (see below), whose sum is σ = 15933256175808. Its totient is φ = 8754444441600.

The previous prime is 12104215315541. The next prime is 12104215315579. The reversal of 12104215315555 is 55551351240121.

It is not a de Polignac number, because 12104215315555 - 2¹⁹ = 12104214791267 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 (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7174959 + ... + 8699911.

It is an arithmetic number, because the mean of its divisors is an integer number (497914255494).

Almost surely, 2^{12104215315555} is an apocalyptic number.

12104215315555 is a deficient number, since it is larger than the sum of its proper divisors (3829040860253).

12104215315555 is a wasteful number, since it uses less digits than its factorization.

12104215315555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525767.

The product of its (nonzero) digits is 150000, while the sum is 40.

Adding to 12104215315555 its reverse (55551351240121), we get a palindrome (67655566555676).

The spelling of 12104215315555 in words is "twelve trillion, one hundred four billion, two hundred fifteen million, three hundred fifteen thousand, five hundred fifty-five".