12315534505444 has 192 divisors, whose sum is σ = 23383595289600. Its totient is φ = 5664748142592.

The previous prime is 12315534505427. The next prime is 12315534505487. The reversal of 12315534505444 is 44450543551321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12315534505394 and 12315534505403.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10966637467 + ... + 10966638589.

It is an arithmetic number, because the mean of its divisors is an integer number (121789558800).

Almost surely, 2^{12315534505444} is an apocalyptic number.

It is an amenable number.

12315534505444 is a deficient number, since it is larger than the sum of its proper divisors (11068060784156).

12315534505444 is a wasteful number, since it uses less digits than its factorization.

12315534505444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622 (or 1620 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 46.

The spelling of 12315534505444 in words is "twelve trillion, three hundred fifteen billion, five hundred thirty-four million, five hundred five thousand, four hundred forty-four".