6501015011 has 4 divisors (see below), whose sum is σ = 6502720224. Its totient is φ = 6499309800.

The previous prime is 6501015007. The next prime is 6501015013. The reversal of 6501015011 is 1105101056.

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 6501015011 - 2² = 6501015007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6501015013) 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, 846875 + ... + 854516.

It is an arithmetic number, because the mean of its divisors is an integer number (1625680056).

Almost surely, 2^6501015011 is an apocalyptic number.

6501015011 is a deficient number, since it is larger than the sum of its proper divisors (1705213).

6501015011 is a wasteful number, since it uses less digits than its factorization.

6501015011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705212.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 6501015011 is about 80628.8720682610. The cubic root of 6501015011 is about 1866.3527154009.

Adding to 6501015011 its reverse (1105101056), we get a palindrome (7606116067).

The spelling of 6501015011 in words is "six billion, five hundred one million, fifteen thousand, eleven".