6513662180648 has 32 divisors (see below), whose sum is σ = 14439152620800. Its totient is φ = 2695308487872.

The previous prime is 6513662180621. The next prime is 6513662180693. The reversal of 6513662180648 is 8460812663156.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 6513662180593 and 6513662180602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2005436240 + ... + 2005439487.

It is an arithmetic number, because the mean of its divisors is an integer number (451223519400).

Almost surely, 2^{6513662180648} is an apocalyptic number.

It is an amenable number.

6513662180648 is an abundant number, since it is smaller than the sum of its proper divisors (7925490440152).

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

6513662180648 is a wasteful number, since it uses less digits than its factorization.

6513662180648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010875769 (or 4010875765 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 6513662180648 in words is "six trillion, five hundred thirteen billion, six hundred sixty-two million, one hundred eighty thousand, six hundred forty-eight".