6541894130066 has 8 divisors (see below), whose sum is σ = 9830270754864. Its totient is φ = 3265137211780.

The previous prime is 6541894130021. The next prime is 6541894130129. The reversal of 6541894130066 is 6600314981456.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2904925220 + ... + 2904927471.

It is an arithmetic number, because the mean of its divisors is an integer number (1228783844358).

Almost surely, 2^{6541894130066} is an apocalyptic number.

6541894130066 is a deficient number, since it is larger than the sum of its proper divisors (3288376624798).

6541894130066 is a wasteful number, since it uses less digits than its factorization.

6541894130066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5809853256.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 6541894130066 in words is "six trillion, five hundred forty-one billion, eight hundred ninety-four million, one hundred thirty thousand, sixty-six".