6564430442 has 8 divisors (see below), whose sum is σ = 9849968832. Its totient is φ = 3281107500.

The previous prime is 6564430423. The next prime is 6564430469. The reversal of 6564430442 is 2440344656.

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

It is a junction number, because it is equal to n+sod(n) for n = 6564430396 and 6564430405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546434 + ... + 558317.

It is an arithmetic number, because the mean of its divisors is an integer number (1231246104).

Almost surely, 2^6564430442 is an apocalyptic number.

6564430442 is a deficient number, since it is larger than the sum of its proper divisors (3285538390).

6564430442 is a wasteful number, since it uses less digits than its factorization.

6564430442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107724.

The product of its (nonzero) digits is 276480, while the sum is 38.

The square root of 6564430442 is about 81021.1728006945. The cubic root of 6564430442 is about 1872.4016576487.

The spelling of 6564430442 in words is "six billion, five hundred sixty-four million, four hundred thirty thousand, four hundred forty-two".