12104040745545 has 24 divisors (see below), whose sum is σ = 22528337062464. Its totient is φ = 5533275769056.

The previous prime is 12104040745543. The next prime is 12104040745627. The reversal of 12104040745545 is 54554704040121.

It is not a de Polignac number, because 12104040745545 - 2¹ = 12104040745543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12104040745497 and 12104040745506.

It is not an unprimeable number, because it can be changed into a prime (12104040745541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8234040589 + ... + 8234042058.

It is an arithmetic number, because the mean of its divisors is an integer number (938680710936).

Almost surely, 2^{12104040745545} is an apocalyptic number.

12104040745545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12104040745545 is a deficient number, since it is larger than the sum of its proper divisors (10424296316919).

12104040745545 is a wasteful number, since it uses less digits than its factorization.

12104040745545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16468082669 (or 16468082662 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 42.

Adding to 12104040745545 its reverse (54554704040121), we get a palindrome (66658744785666).

The spelling of 12104040745545 in words is "twelve trillion, one hundred four billion, forty million, seven hundred forty-five thousand, five hundred forty-five".