6501642711 has 4 divisors (see below), whose sum is σ = 8668856952. Its totient is φ = 4334428472.

The previous prime is 6501642703. The next prime is 6501642713. The reversal of 6501642711 is 1172461056.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6501642711 - 2³ = 6501642703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501642713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083607116 + ... + 1083607121.

It is an arithmetic number, because the mean of its divisors is an integer number (2167214238).

Almost surely, 2^6501642711 is an apocalyptic number.

6501642711 is a deficient number, since it is larger than the sum of its proper divisors (2167214241).

6501642711 is a wasteful number, since it uses less digits than its factorization.

6501642711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167214240.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 6501642711 is about 80632.7645005428. The cubic root of 6501642711 is about 1866.4127815031.

The spelling of 6501642711 in words is "six billion, five hundred one million, six hundred forty-two thousand, seven hundred eleven".