12541416643 has 8 divisors (see below), whose sum is σ = 14334041600. Its totient is φ = 10749040200.

The previous prime is 12541416599. The next prime is 12541416677. The reversal of 12541416643 is 34661414521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12541416643 - 2²¹ = 12539319491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12541416143) 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, 62758 + ... + 170356.

It is an arithmetic number, because the mean of its divisors is an integer number (1791755200).

Almost surely, 2^12541416643 is an apocalyptic number.

12541416643 is a deficient number, since it is larger than the sum of its proper divisors (1792624957).

12541416643 is a wasteful number, since it uses less digits than its factorization.

12541416643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124257.

The product of its digits is 69120, while the sum is 37.

The spelling of 12541416643 in words is "twelve billion, five hundred forty-one million, four hundred sixteen thousand, six hundred forty-three".