65444446 has 16 divisors (see below), whose sum is σ = 100835280. Its totient is φ = 31837120.

The previous prime is 65444443. The next prime is 65444447. The reversal of 65444446 is 64444456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65444443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37440 + ... + 39148.

It is an arithmetic number, because the mean of its divisors is an integer number (6302205).

Almost surely, 2^65444446 is an apocalyptic number.

65444446 is a deficient number, since it is larger than the sum of its proper divisors (35390834).

65444446 is a wasteful number, since it uses less digits than its factorization.

65444446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219.

The product of its digits is 184320, while the sum is 37.

The square root of 65444446 is about 8089.7741624844. The cubic root of 65444446 is about 402.9869030095.

The spelling of 65444446 in words is "sixty-five million, four hundred forty-four thousand, four hundred forty-six".