12065534650 has 48 divisors (see below), whose sum is σ = 24564474648. Its totient is φ = 4381920000.

The previous prime is 12065534617. The next prime is 12065534671. The reversal of 12065534650 is 5643556021.

It can be written as a sum of positive squares in 12 ways, for example, as 2633434489 + 9432100161 = 51317^2 + 97119^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112501 + ... + 191800.

Almost surely, 2^12065534650 is an apocalyptic number.

12065534650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12065534650 is an abundant number, since it is smaller than the sum of its proper divisors (12498939998).

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

12065534650 is a wasteful number, since it uses less digits than its factorization.

12065534650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304387 (or 304382 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 12065534650 in words is "twelve billion, sixty-five million, five hundred thirty-four thousand, six hundred fifty".