6545664312 has 64 divisors (see below), whose sum is σ = 18791395200. Its totient is φ = 1879136640.

The previous prime is 6545664263. The next prime is 6545664337. The reversal of 6545664312 is 2134665456.

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, 647463 + ... + 657494.

It is an arithmetic number, because the mean of its divisors is an integer number (293615550).

Almost surely, 2^6545664312 is an apocalyptic number.

It is an amenable number.

6545664312 is an abundant number, since it is smaller than the sum of its proper divisors (12245730888).

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

6545664312 is a wasteful number, since it uses less digits than its factorization.

6545664312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304996 (or 1304992 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The square root of 6545664312 is about 80905.2798771502. The cubic root of 6545664312 is about 1870.6157058205.

The spelling of 6545664312 in words is "six billion, five hundred forty-five million, six hundred sixty-four thousand, three hundred twelve".