6515065011550 has 48 divisors (see below), whose sum is σ = 12447536788800. Its totient is φ = 2535185036160.

The previous prime is 6515065011541. The next prime is 6515065011577. The reversal of 6515065011550 is 551105605156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11350876 + ... + 11911024.

It is an arithmetic number, because the mean of its divisors is an integer number (259323683100).

Almost surely, 2^{6515065011550} is an apocalyptic number.

6515065011550 is a deficient number, since it is larger than the sum of its proper divisors (5932471777250).

6515065011550 is a wasteful number, since it uses less digits than its factorization.

6515065011550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566485 (or 566480 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 6515065011550 in words is "six trillion, five hundred fifteen billion, sixty-five million, eleven thousand, five hundred fifty".