6505985717952 has 112 divisors (see below), whose sum is σ = 19701667959552. Its totient is φ = 1856131200000.

The previous prime is 6505985717941. The next prime is 6505985718013. The reversal of 6505985717952 is 2597175895056.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2625799 + ... + 4461702.

Almost surely, 2^{6505985717952} is an apocalyptic number.

It is an amenable number.

6505985717952 is an abundant number, since it is smaller than the sum of its proper divisors (13195682241600).

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

6505985717952 is a wasteful number, since it uses less digits than its factorization.

6505985717952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7088206 (or 7088196 counting only the distinct ones).

The product of its (nonzero) digits is 238140000, while the sum is 69.

The spelling of 6505985717952 in words is "six trillion, five hundred five billion, nine hundred eighty-five million, seven hundred seventeen thousand, nine hundred fifty-two".