6650516515650 has 144 divisors (see below), whose sum is σ = 19200768723936. Its totient is φ = 1518952807680.

The previous prime is 6650516515499. The next prime is 6650516515663. The reversal of 6650516515650 is 565156150566.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6650516515593 and 6650516515602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9260302 + ... + 9952598.

It is an arithmetic number, because the mean of its divisors is an integer number (133338671694).

Almost surely, 2^{6650516515650} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6650516515650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9600384361968).

6650516515650 is an abundant number, since it is smaller than the sum of its proper divisors (12550252208286).

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

6650516515650 is a wasteful number, since it uses less digits than its factorization.

6650516515650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693633 (or 693621 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 6650516515650 in words is "six trillion, six hundred fifty billion, five hundred sixteen million, five hundred fifteen thousand, six hundred fifty".