6564955012 has 48 divisors (see below), whose sum is σ = 15077422080. Its totient is φ = 2423152800.

The previous prime is 6564954997. The next prime is 6564955027. The reversal of 6564955012 is 2105594656.

It is an interprime number because it is at equal distance from previous prime (6564954997) and next prime (6564955027).

It is a self number, because there is not a number n which added to its sum of digits gives 6564955012.

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, 555064 + ... + 566767.

It is an arithmetic number, because the mean of its divisors is an integer number (314112960).

Almost surely, 2^6564955012 is an apocalyptic number.

It is an amenable number.

6564955012 is an abundant number, since it is smaller than the sum of its proper divisors (8512467068).

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

6564955012 is a wasteful number, since it uses less digits than its factorization.

6564955012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121872 (or 1121870 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 43.

The square root of 6564955012 is about 81024.4099762535. The cubic root of 6564955012 is about 1872.4515314640.

The spelling of 6564955012 in words is "six billion, five hundred sixty-four million, nine hundred fifty-five thousand, twelve".