6499950663 has 16 divisors (see below), whose sum is σ = 9313367040. Its totient is φ = 4017526656.

The previous prime is 6499950619. The next prime is 6499950679. The reversal of 6499950663 is 3660599946.

It is not a de Polignac number, because 6499950663 - 2⁶ = 6499950599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6499952663) 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, 947703 + ... + 954536.

It is an arithmetic number, because the mean of its divisors is an integer number (582085440).

Almost surely, 2^6499950663 is an apocalyptic number.

6499950663 is a deficient number, since it is larger than the sum of its proper divisors (2813416377).

6499950663 is a wasteful number, since it uses less digits than its factorization.

6499950663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902326.

The product of its (nonzero) digits is 9447840, while the sum is 57.

The square root of 6499950663 is about 80622.2715073199. The cubic root of 6499950663 is about 1866.2508565787.

The spelling of 6499950663 in words is "six billion, four hundred ninety-nine million, nine hundred fifty thousand, six hundred sixty-three".