6500650015 has 4 divisors (see below), whose sum is σ = 7800780024. Its totient is φ = 5200520008.

The previous prime is 6500650007. The next prime is 6500650033. The reversal of 6500650015 is 5100560056.

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 6500650015 - 2³ = 6500650007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650064997 + ... + 650065006.

It is an arithmetic number, because the mean of its divisors is an integer number (1950195006).

Almost surely, 2^6500650015 is an apocalyptic number.

6500650015 is a deficient number, since it is larger than the sum of its proper divisors (1300130009).

6500650015 is a wasteful number, since it uses less digits than its factorization.

6500650015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300130008.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 6500650015 is about 80626.6086041079. The cubic root of 6500650015 is about 1866.3177862899.

The spelling of 6500650015 in words is "six billion, five hundred million, six hundred fifty thousand, fifteen".