6716565845 has 16 divisors (see below), whose sum is σ = 8859723840. Its totient is φ = 4847481600.

The previous prime is 6716565833. The next prime is 6716565847. The reversal of 6716565845 is 5485656176.

It is a happy number.

It is not a de Polignac number, because 6716565845 - 2⁴ = 6716565829 is a prime.

It is a super-2 number, since 2×6716565845² = 90224513500441128050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6716565847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458900 + ... + 473309.

It is an arithmetic number, because the mean of its divisors is an integer number (553732740).

Almost surely, 2^6716565845 is an apocalyptic number.

It is an amenable number.

6716565845 is a deficient number, since it is larger than the sum of its proper divisors (2143157995).

6716565845 is a wasteful number, since it uses less digits than its factorization.

6716565845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932356.

The product of its digits is 6048000, while the sum is 53.

The square root of 6716565845 is about 81954.6572502137. The cubic root of 6716565845 is about 1886.7560831392.

The spelling of 6716565845 in words is "six billion, seven hundred sixteen million, five hundred sixty-five thousand, eight hundred forty-five".