12505308320528 has 80 divisors (see below), whose sum is σ = 24592597044480. Its totient is φ = 6159210789888.

The previous prime is 12505308320473. The next prime is 12505308320537. The reversal of 12505308320528 is 82502380350521.

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, 1910078951 + ... + 1910085497.

It is an arithmetic number, because the mean of its divisors is an integer number (307407463056).

Almost surely, 2^{12505308320528} is an apocalyptic number.

It is an amenable number.

12505308320528 is a deficient number, since it is larger than the sum of its proper divisors (12087288723952).

12505308320528 is a wasteful number, since it uses less digits than its factorization.

12505308320528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9904 (or 9898 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 12505308320528 in words is "twelve trillion, five hundred five billion, three hundred eight million, three hundred twenty thousand, five hundred twenty-eight".