6501500065501 has 4 divisors (see below), whose sum is σ = 7430285789152. Its totient is φ = 5572714341852.

The previous prime is 6501500065421. The next prime is 6501500065513. The reversal of 6501500065501 is 1055600051056.

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 6501500065501 - 2⁹ = 6501500064989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501500065591) 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, 464392861815 + ... + 464392861828.

It is an arithmetic number, because the mean of its divisors is an integer number (1857571447288).

Almost surely, 2^{6501500065501} is an apocalyptic number.

It is an amenable number.

6501500065501 is a deficient number, since it is larger than the sum of its proper divisors (928785723651).

6501500065501 is an equidigital number, since it uses as much as digits as its factorization.

6501500065501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928785723650.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 6501500065501 in words is "six trillion, five hundred one billion, five hundred million, sixty-five thousand, five hundred one".