6516515009650 has 24 divisors (see below), whose sum is σ = 12647705655744. Its totient is φ = 2493275307600.

The previous prime is 6516515009549. The next prime is 6516515009663. The reversal of 6516515009650 is 569005156156.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6516515009594 and 6516515009603.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2833266246 + ... + 2833268545.

It is an arithmetic number, because the mean of its divisors is an integer number (526987735656).

Almost surely, 2^{6516515009650} is an apocalyptic number.

6516515009650 is a deficient number, since it is larger than the sum of its proper divisors (6131190646094).

6516515009650 is a wasteful number, since it uses less digits than its factorization.

6516515009650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5666534826 (or 5666534821 counting only the distinct ones).

The product of its (nonzero) digits is 1215000, while the sum is 49.

The spelling of 6516515009650 in words is "six trillion, five hundred sixteen billion, five hundred fifteen million, nine thousand, six hundred fifty".