6501505011 has 8 divisors (see below), whose sum is σ = 8672278464. Its totient is φ = 4332534120.

The previous prime is 6501504953. The next prime is 6501505019. The reversal of 6501505011 is 1105051056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6501505011 - 2⁷ = 6501504883 is a prime.

It is a super-2 number, since 2×6501505011² = 84539134816116220242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6501505019) 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 7 ways as a sum of consecutive naturals, for example, 442201 + ... + 456666.

It is an arithmetic number, because the mean of its divisors is an integer number (1084034808).

Almost surely, 2^6501505011 is an apocalyptic number.

6501505011 is a deficient number, since it is larger than the sum of its proper divisors (2170773453).

6501505011 is a wasteful number, since it uses less digits than its factorization.

6501505011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901281.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 6501505011 is about 80631.9106247644. The cubic root of 6501505011 is about 1866.3996049945.

Adding to 6501505011 its reverse (1105051056), we get a palindrome (7606556067).

The spelling of 6501505011 in words is "six billion, five hundred one million, five hundred five thousand, eleven".