64800568896 has 112 divisors (see below), whose sum is σ = 196065306624. Its totient is φ = 18503041536.

The previous prime is 64800568867. The next prime is 64800568901. The reversal of 64800568896 is 69886500846.

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

It is a super-4 number, since 4×64800568896⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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, 2301721 + ... + 2329703.

Almost surely, 2^64800568896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64800568896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98032653312).

64800568896 is an abundant number, since it is smaller than the sum of its proper divisors (131264737728).

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

64800568896 is a wasteful number, since it uses less digits than its factorization.

64800568896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29728 (or 29718 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 64800568896 in words is "sixty-four billion, eight hundred million, five hundred sixty-eight thousand, eight hundred ninety-six".