6505211212008 has 32 divisors (see below), whose sum is σ = 16787641839360. Its totient is φ = 2098455229440.

The previous prime is 6505211211943. The next prime is 6505211212009. The reversal of 6505211212008 is 8002121125056.

It is a self number, because there is not a number n which added to its sum of digits gives 6505211212008.

It is not an unprimeable number, because it can be changed into a prime (6505211212009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4371780985 + ... + 4371782472.

It is an arithmetic number, because the mean of its divisors is an integer number (524613807480).

Almost surely, 2^{6505211212008} is an apocalyptic number.

It is an amenable number.

6505211212008 is an abundant number, since it is smaller than the sum of its proper divisors (10282430627352).

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

6505211212008 is a wasteful number, since it uses less digits than its factorization.

6505211212008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8743563497 (or 8743563493 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The spelling of 6505211212008 in words is "six trillion, five hundred five billion, two hundred eleven million, two hundred twelve thousand, eight".