6564673452 has 12 divisors (see below), whose sum is σ = 15317571416. Its totient is φ = 2188224480.

The previous prime is 6564673447. The next prime is 6564673457. The reversal of 6564673452 is 2543764656.

It is an interprime number because it is at equal distance from previous prime (6564673447) and next prime (6564673457).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (6564673457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273528049 + ... + 273528072.

Almost surely, 2^6564673452 is an apocalyptic number.

It is an amenable number.

6564673452 is an abundant number, since it is smaller than the sum of its proper divisors (8752897964).

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

6564673452 is a wasteful number, since it uses less digits than its factorization.

6564673452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547056128 (or 547056126 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 48.

The square root of 6564673452 is about 81022.6724565414. The cubic root of 6564673452 is about 1872.4247623042.

The spelling of 6564673452 in words is "six billion, five hundred sixty-four million, six hundred seventy-three thousand, four hundred fifty-two".