64163344 has 60 divisors (see below), whose sum is σ = 145657344. Its totient is φ = 27300672.

The previous prime is 64163317. The next prime is 64163369. The reversal of 64163344 is 44336146.

It is a happy number.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174649 + ... + 175015.

Almost surely, 2^64163344 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 64163344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72828672).

64163344 is an abundant number, since it is smaller than the sum of its proper divisors (81494000).

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

64163344 is a wasteful number, since it uses less digits than its factorization.

64163344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 599 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 64163344 is about 8010.2024943194. The cubic root of 64163344 is about 400.3400108996.

The spelling of 64163344 in words is "sixty-four million, one hundred sixty-three thousand, three hundred forty-four".