868001664 has 32 divisors (see below), whose sum is σ = 2305630440. Its totient is φ = 289333760.

The previous prime is 868001647. The next prime is 868001671. The reversal of 868001664 is 466100868.

868001664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

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, 1129827 + ... + 1130594.

Almost surely, 2^868001664 is an apocalyptic number.

It is an amenable number.

868001664 is an abundant number, since it is smaller than the sum of its proper divisors (1437628776).

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

868001664 is a wasteful number, since it uses less digits than its factorization.

868001664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260438 (or 2260426 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 868001664 is about 29461.8679652190. The cubic root of 868001664 is about 953.9087941146.

The spelling of 868001664 in words is "eight hundred sixty-eight million, one thousand, six hundred sixty-four".