85964707568256 has 128 divisors (see below), whose sum is σ = 249357256090560. Its totient is φ = 26023246970880.

The previous prime is 85964707568183. The next prime is 85964707568281. The reversal of 85964707568256 is 65286570746958.

It is a tau number, because it is divible by the number of its divisors (128).

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, 6288451 + ... + 14542146.

Almost surely, 2^{85964707568256} is an apocalyptic number.

It is an amenable number.

85964707568256 is an abundant number, since it is smaller than the sum of its proper divisors (163392548522304).

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

85964707568256 is a wasteful number, since it uses less digits than its factorization.

85964707568256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20831602 (or 20831590 counting only the distinct ones).

The product of its (nonzero) digits is 6096384000, while the sum is 78.

The spelling of 85964707568256 in words is "eighty-five trillion, nine hundred sixty-four billion, seven hundred seven million, five hundred sixty-eight thousand, two hundred fifty-six".