6512664650 has 24 divisors (see below), whose sum is σ = 12294361920. Its totient is φ = 2566182960.

The previous prime is 6512664649. The next prime is 6512664661. The reversal of 6512664650 is 564662156.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6512664598 and 6512664607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 968690 + ... + 975389.

It is an arithmetic number, because the mean of its divisors is an integer number (512265080).

Almost surely, 2^6512664650 is an apocalyptic number.

6512664650 is a deficient number, since it is larger than the sum of its proper divisors (5781697270).

6512664650 is a wasteful number, since it uses less digits than its factorization.

6512664650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944158 (or 1944153 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 6512664650 is about 80701.0820869212. The cubic root of 6512664650 is about 1867.4668676288.

The spelling of 6512664650 in words is "six billion, five hundred twelve million, six hundred sixty-four thousand, six hundred fifty".