6511570012 has 12 divisors (see below), whose sum is σ = 11523284640. Its totient is φ = 3219202976.

The previous prime is 6511570003. The next prime is 6511570063. The reversal of 6511570012 is 2100751156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9145108 + ... + 9145819.

It is an arithmetic number, because the mean of its divisors is an integer number (960273720).

Almost surely, 2^6511570012 is an apocalyptic number.

It is an amenable number.

6511570012 is a deficient number, since it is larger than the sum of its proper divisors (5011714628).

6511570012 is a wasteful number, since it uses less digits than its factorization.

6511570012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18291020 (or 18291018 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 6511570012 is about 80694.2997491149. The cubic root of 6511570012 is about 1867.3622348429.

The spelling of 6511570012 in words is "six billion, five hundred eleven million, five hundred seventy thousand, twelve".