12541216650 has 24 divisors (see below), whose sum is σ = 31102217664. Its totient is φ = 3344324400.

The previous prime is 12541216607. The next prime is 12541216651. The reversal of 12541216650 is 5661214521.

It is not an unprimeable number, because it can be changed into a prime (12541216651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41803906 + ... + 41804205.

It is an arithmetic number, because the mean of its divisors is an integer number (1295925736).

Almost surely, 2^12541216650 is an apocalyptic number.

12541216650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12541216650 is an abundant number, since it is smaller than the sum of its proper divisors (18561001014).

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

12541216650 is a wasteful number, since it uses less digits than its factorization.

12541216650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83608126 (or 83608121 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 12541216650 in words is "twelve billion, five hundred forty-one million, two hundred sixteen thousand, six hundred fifty".