6491750164 has 12 divisors (see below), whose sum is σ = 11365200000. Its totient is φ = 3244550168.

The previous prime is 6491750149. The next prime is 6491750183. The reversal of 6491750164 is 4610571946.

It is a self number, because there is not a number n which added to its sum of digits gives 6491750164.

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, 320164 + ... + 339835.

It is an arithmetic number, because the mean of its divisors is an integer number (947100000).

Almost surely, 2^6491750164 is an apocalyptic number.

It is an amenable number.

6491750164 is a deficient number, since it is larger than the sum of its proper divisors (4873449836).

6491750164 is a wasteful number, since it uses less digits than its factorization.

6491750164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662462 (or 662460 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 6491750164 is about 80571.3979275524. The cubic root of 6491750164 is about 1865.4656901654.

The spelling of 6491750164 in words is "six billion, four hundred ninety-one million, seven hundred fifty thousand, one hundred sixty-four".