6511001648 has 10 divisors (see below), whose sum is σ = 12615065724. Its totient is φ = 3255500816.

The previous prime is 6511001593. The next prime is 6511001657. The reversal of 6511001648 is 8461001156.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203468786 + ... + 203468817.

Almost surely, 2^6511001648 is an apocalyptic number.

It is an amenable number.

6511001648 is a deficient number, since it is larger than the sum of its proper divisors (6104064076).

6511001648 is a wasteful number, since it uses less digits than its factorization.

6511001648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406937611 (or 406937605 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 6511001648 is about 80690.7779613011. Note that the first 3 decimals coincide. The cubic root of 6511001648 is about 1867.3079022038.

The spelling of 6511001648 in words is "six billion, five hundred eleven million, one thousand, six hundred forty-eight".