12545105650 has 96 divisors (see below), whose sum is σ = 30095038080. Its totient is φ = 3775296000.

The previous prime is 12545105641. The next prime is 12545105653. The reversal of 12545105650 is 5650154521.

It is not an unprimeable number, because it can be changed into a prime (12545105653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55470 + ... + 167830.

It is an arithmetic number, because the mean of its divisors is an integer number (313489980).

Almost surely, 2^12545105650 is an apocalyptic number.

12545105650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12545105650 is an abundant number, since it is smaller than the sum of its proper divisors (17549932430).

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

12545105650 is a wasteful number, since it uses less digits than its factorization.

12545105650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112420 (or 112415 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 12545105650 in words is "twelve billion, five hundred forty-five million, one hundred five thousand, six hundred fifty".