6716016561 has 4 divisors (see below), whose sum is σ = 8954688752. Its totient is φ = 4477344372.

The previous prime is 6716016547. The next prime is 6716016569. The reversal of 6716016561 is 1656106176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6716016561 - 2¹⁵ = 6715983793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6716016569) 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, 1119336091 + ... + 1119336096.

It is an arithmetic number, because the mean of its divisors is an integer number (2238672188).

Almost surely, 2^6716016561 is an apocalyptic number.

It is an amenable number.

6716016561 is a deficient number, since it is larger than the sum of its proper divisors (2238672191).

6716016561 is a wasteful number, since it uses less digits than its factorization.

6716016561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238672190.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 6716016561 is about 81951.3060359626. The cubic root of 6716016561 is about 1886.7046484624.

The spelling of 6716016561 in words is "six billion, seven hundred sixteen million, sixteen thousand, five hundred sixty-one".