6511316064 has 96 divisors (see below), whose sum is σ = 19742921856. Its totient is φ = 1857054720.

The previous prime is 6511316057. The next prime is 6511316099. The reversal of 6511316064 is 4606131156.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163402 + ... + 199305.

It is an arithmetic number, because the mean of its divisors is an integer number (205655436).

Almost surely, 2^6511316064 is an apocalyptic number.

It is an amenable number.

6511316064 is an abundant number, since it is smaller than the sum of its proper divisors (13231605792).

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

6511316064 is a wasteful number, since it uses less digits than its factorization.

6511316064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362748 (or 362740 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 6511316064 is about 80692.7262149446. The cubic root of 6511316064 is about 1867.3379591271.

The spelling of 6511316064 in words is "six billion, five hundred eleven million, three hundred sixteen thousand, sixty-four".