65441144 has 8 divisors (see below), whose sum is σ = 122702160. Its totient is φ = 32720568.

The previous prime is 65441113. The next prime is 65441171. The reversal of 65441144 is 44114456.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4090064 + ... + 4090079.

It is an arithmetic number, because the mean of its divisors is an integer number (15337770).

Almost surely, 2^65441144 is an apocalyptic number.

It is an amenable number.

65441144 is a deficient number, since it is larger than the sum of its proper divisors (57261016).

65441144 is a wasteful number, since it uses less digits than its factorization.

65441144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8180149 (or 8180145 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 65441144 is about 8089.5700751029. The cubic root of 65441144 is about 402.9801253265.

The spelling of 65441144 in words is "sixty-five million, four hundred forty-one thousand, one hundred forty-four".