646500050500 has 48 divisors (see below), whose sum is σ = 1422114220800. Its totient is φ = 256739560800.

The previous prime is 646500050431. The next prime is 646500050501. The reversal of 646500050500 is 5050005646.

It is not an unprimeable number, because it can be changed into a prime (646500050501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4581580 + ... + 4720579.

It is an arithmetic number, because the mean of its divisors is an integer number (29627379600).

Almost surely, 2^646500050500 is an apocalyptic number.

It is an amenable number.

646500050500 is an abundant number, since it is smaller than the sum of its proper divisors (775614170300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

646500050500 is a wasteful number, since it uses less digits than its factorization.

646500050500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9302317 (or 9302305 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 646500050500 in words is "six hundred forty-six billion, five hundred million, fifty thousand, five hundred".