65499444 has 36 divisors (see below), whose sum is σ = 167283844. Its totient is φ = 21606912.

The previous prime is 65499437. The next prime is 65499463. The reversal of 65499444 is 44499456.

It can be written as a sum of positive squares in 2 ways, for example, as 34363044 + 31136400 = 5862^2 + 5580^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 65499444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5887 + ... + 12870.

Almost surely, 2^65499444 is an apocalyptic number.

It is an amenable number.

65499444 is an abundant number, since it is smaller than the sum of its proper divisors (101784400).

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

65499444 is a wasteful number, since it uses less digits than its factorization.

65499444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18864 (or 18859 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 65499444 is about 8093.1726782517. The cubic root of 65499444 is about 403.0997583618.

The spelling of 65499444 in words is "sixty-five million, four hundred ninety-nine thousand, four hundred forty-four".