6564479554554 has 8 divisors (see below), whose sum is σ = 13128959109120. Its totient is φ = 2188159851516.

The previous prime is 6564479554553. The next prime is 6564479554631. The reversal of 6564479554554 is 4554559744656.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

6564479554554 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (6564479554553) 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, 547039962874 + ... + 547039962885.

It is an arithmetic number, because the mean of its divisors is an integer number (1641119888640).

Almost surely, 2^{6564479554554} is an apocalyptic number.

6564479554554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6564479554554 is a wasteful number, since it uses less digits than its factorization.

6564479554554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094079925764.

The product of its digits is 1814400000, while the sum is 69.

The spelling of 6564479554554 in words is "six trillion, five hundred sixty-four billion, four hundred seventy-nine million, five hundred fifty-four thousand, five hundred fifty-four".