64441168 has 40 divisors (see below), whose sum is σ = 136794816. Its totient is φ = 29164800.

The previous prime is 64441151. The next prime is 64441171. The reversal of 64441168 is 86114446.

It is a super-3 number, since 3×64441168³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48805 + ... + 50107.

Almost surely, 2^64441168 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 64441168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68397408).

64441168 is an abundant number, since it is smaller than the sum of its proper divisors (72353648).

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

64441168 is a wasteful number, since it uses less digits than its factorization.

64441168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1597 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 64441168 is about 8027.5256461752. The cubic root of 64441168 is about 400.9169961885.

The spelling of 64441168 in words is "sixty-four million, four hundred forty-one thousand, one hundred sixty-eight".