64341665570664 has 96 divisors (see below), whose sum is σ = 176397331481280. Its totient is φ = 21184117650432.

The previous prime is 64341665570641. The next prime is 64341665570713. The reversal of 64341665570664 is 46607556614346.

64341665570664 is a `hidden beast` number, since 6 + 4 + 3 + 4 + 16 + 6 + 557 + 0 + 6 + 64 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25776837 + ... + 28162539.

It is an arithmetic number, because the mean of its divisors is an integer number (1837472202930).

Almost surely, 2^{64341665570664} 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 64341665570664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88198665740640).

64341665570664 is an abundant number, since it is smaller than the sum of its proper divisors (112055665910616).

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

64341665570664 is a wasteful number, since it uses less digits than its factorization.

64341665570664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390311 (or 2390304 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 63.

The spelling of 64341665570664 in words is "sixty-four trillion, three hundred forty-one billion, six hundred sixty-five million, five hundred seventy thousand, six hundred sixty-four".