6512651564 has 12 divisors (see below), whose sum is σ = 11397989064. Its totient is φ = 3256083264.

The previous prime is 6512651543. The next prime is 6512651591. The reversal of 6512651564 is 4651562156.

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, 8567 + ... + 114449.

It is an arithmetic number, because the mean of its divisors is an integer number (949832422).

Almost surely, 2^6512651564 is an apocalyptic number.

It is an amenable number.

6512651564 is a deficient number, since it is larger than the sum of its proper divisors (4885337500).

6512651564 is a wasteful number, since it uses less digits than its factorization.

6512651564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121264 (or 121262 counting only the distinct ones).

The product of its digits is 216000, while the sum is 41.

The square root of 6512651564 is about 80701.0010099007. The cubic root of 6512651564 is about 1867.4656168510.

The spelling of 6512651564 in words is "six billion, five hundred twelve million, six hundred fifty-one thousand, five hundred sixty-four".