12505664301636 has 24 divisors (see below), whose sum is σ = 31832600040864. Its totient is φ = 3789595242880.

The previous prime is 12505664301631. The next prime is 12505664301719. The reversal of 12505664301636 is 63610346650521.

It is not an unprimeable number, because it can be changed into a prime (12505664301631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47369940405 + ... + 47369940668.

It is an arithmetic number, because the mean of its divisors is an integer number (1326358335036).

Almost surely, 2^{12505664301636} is an apocalyptic number.

It is an amenable number.

12505664301636 is an abundant number, since it is smaller than the sum of its proper divisors (19326935739228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12505664301636 is a wasteful number, since it uses less digits than its factorization.

12505664301636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94739881091 (or 94739881089 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 12505664301636 in words is "twelve trillion, five hundred five billion, six hundred sixty-four million, three hundred one thousand, six hundred thirty-six".