6510000665 has 8 divisors (see below), whose sum is σ = 8928000960. Its totient is φ = 4464000432.

The previous prime is 6510000641. The next prime is 6510000667. The reversal of 6510000665 is 5660000156.

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

It is a cyclic number.

It is not a de Polignac number, because 6510000665 - 2¹⁶ = 6509935129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6510000667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92999975 + ... + 93000044.

It is an arithmetic number, because the mean of its divisors is an integer number (1116000120).

Almost surely, 2^6510000665 is an apocalyptic number.

It is an amenable number.

6510000665 is a deficient number, since it is larger than the sum of its proper divisors (2418000295).

6510000665 is a wasteful number, since it uses less digits than its factorization.

6510000665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186000031.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 6510000665 is about 80684.5751367633. The cubic root of 6510000665 is about 1867.2122057524.

The spelling of 6510000665 in words is "six billion, five hundred ten million, six hundred sixty-five", and thus it is an aban number.