6564069396 has 18 divisors (see below), whose sum is σ = 16592508842. Its totient is φ = 2188023120.

The previous prime is 6564069389. The next prime is 6564069439. The reversal of 6564069396 is 6939604656.

It is a happy number.

6564069396 is a `hidden beast` number, since 65 + 6 + 406 + 93 + 96 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6244160400 + 319908996 = 79020^2 + 17886^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91167595 + ... + 91167666.

Almost surely, 2^6564069396 is an apocalyptic number.

It is an amenable number.

6564069396 is an abundant number, since it is smaller than the sum of its proper divisors (10028439446).

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

6564069396 is a wasteful number, since it uses less digits than its factorization.

6564069396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182335271 (or 182335266 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

The square root of 6564069396 is about 81018.9446734528. The cubic root of 6564069396 is about 1872.3673294344.

The spelling of 6564069396 in words is "six billion, five hundred sixty-four million, sixty-nine thousand, three hundred ninety-six".