6500065297649 has 16 divisors (see below), whose sum is σ = 8323003936896. Its totient is φ = 4928094432000.

The previous prime is 6500065297603. The next prime is 6500065297679. The reversal of 6500065297649 is 9467925600056.

It is a cyclic number.

It is not a de Polignac number, because 6500065297649 - 2²⁸ = 6499796862193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6500065297679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1140759752 + ... + 1140765449.

It is an arithmetic number, because the mean of its divisors is an integer number (520187746056).

Almost surely, 2^{6500065297649} is an apocalyptic number.

It is an amenable number.

6500065297649 is a deficient number, since it is larger than the sum of its proper divisors (1822938639247).

6500065297649 is a wasteful number, since it uses less digits than its factorization.

6500065297649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281525256.

The product of its (nonzero) digits is 24494400, while the sum is 59.

The spelling of 6500065297649 in words is "six trillion, five hundred billion, sixty-five million, two hundred ninety-seven thousand, six hundred forty-nine".