12145045650 has 48 divisors (see below), whose sum is σ = 31891467744. Its totient is φ = 3048167680.

The previous prime is 12145045639. The next prime is 12145045709. The reversal of 12145045650 is 5654054121.

12145045650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2378832 + ... + 2383931.

It is an arithmetic number, because the mean of its divisors is an integer number (664405578).

Almost surely, 2^12145045650 is an apocalyptic number.

12145045650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12145045650 is an abundant number, since it is smaller than the sum of its proper divisors (19746422094).

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

12145045650 is a wasteful number, since it uses less digits than its factorization.

12145045650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4762795 (or 4762790 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 12145045650 its reverse (5654054121), we get a palindrome (17799099771).

The spelling of 12145045650 in words is "twelve billion, one hundred forty-five million, forty-five thousand, six hundred fifty".