6564450694 has 12 divisors (see below), whose sum is σ = 10174560012. Its totient is φ = 3176346180.

The previous prime is 6564450689. The next prime is 6564450731. The reversal of 6564450694 is 4960544656.

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, 1705792 + ... + 1709635.

It is an arithmetic number, because the mean of its divisors is an integer number (847880001).

Almost surely, 2^6564450694 is an apocalyptic number.

6564450694 is a deficient number, since it is larger than the sum of its proper divisors (3610109318).

6564450694 is a wasteful number, since it uses less digits than its factorization.

6564450694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415491 (or 3415460 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The square root of 6564450694 is about 81021.2977802750. The cubic root of 6564450694 is about 1872.4035831693.

The spelling of 6564450694 in words is "six billion, five hundred sixty-four million, four hundred fifty thousand, six hundred ninety-four".