6505648646801 has 16 divisors (see below), whose sum is σ = 6622448129280. Its totient is φ = 6390000984960.

The previous prime is 6505648646797. The next prime is 6505648646813. The reversal of 6505648646801 is 1086468465056.

It is a cyclic number.

It is not a de Polignac number, because 6505648646801 - 2² = 6505648646797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6505648646401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11764760 + ... + 12305318.

It is an arithmetic number, because the mean of its divisors is an integer number (413903008080).

Almost surely, 2^{6505648646801} is an apocalyptic number.

It is an amenable number.

6505648646801 is a deficient number, since it is larger than the sum of its proper divisors (116799482479).

6505648646801 is a wasteful number, since it uses less digits than its factorization.

6505648646801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541624.

The product of its (nonzero) digits is 33177600, while the sum is 59.

The spelling of 6505648646801 in words is "six trillion, five hundred five billion, six hundred forty-eight million, six hundred forty-six thousand, eight hundred one".