12315622315555 has 16 divisors (see below), whose sum is σ = 15923464339104. Its totient is φ = 9090104325120.

The previous prime is 12315622315463. The next prime is 12315622315573. The reversal of 12315622315555 is 55551322651321.

It is not a de Polignac number, because 12315622315555 - 2⁹ = 12315622315043 is a prime.

It is a Duffinian 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, 46837441 + ... + 47099650.

It is an arithmetic number, because the mean of its divisors is an integer number (995216521194).

Almost surely, 2^{12315622315555} is an apocalyptic number.

12315622315555 is a deficient number, since it is larger than the sum of its proper divisors (3607842023549).

12315622315555 is a wasteful number, since it uses less digits than its factorization.

12315622315555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93939126.

The product of its digits is 1350000, while the sum is 46.

Adding to 12315622315555 its reverse (55551322651321), we get a palindrome (67866944966876).

The spelling of 12315622315555 in words is "twelve trillion, three hundred fifteen billion, six hundred twenty-two million, three hundred fifteen thousand, five hundred fifty-five".