6416543116240 has 80 divisors (see below), whose sum is σ = 15902033432400. Its totient is φ = 2399427338240.

The previous prime is 6416543116219. The next prime is 6416543116259. The reversal of 6416543116240 is 426113456146.

It can be written as a sum of positive squares in 8 ways, for example, as 84153368464 + 6332389747776 = 290092^2 + 2516424^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15629731 + ... + 16035010.

It is an arithmetic number, because the mean of its divisors is an integer number (198775417905).

Almost surely, 2^{6416543116240} is an apocalyptic number.

It is an amenable number.

6416543116240 is an abundant number, since it is smaller than the sum of its proper divisors (9485490316160).

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

6416543116240 is a wasteful number, since it uses less digits than its factorization.

6416543116240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31664920 (or 31664914 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 6416543116240 in words is "six trillion, four hundred sixteen billion, five hundred forty-three million, one hundred sixteen thousand, two hundred forty".