2064443616 has 72 divisors (see below), whose sum is σ = 5875453584. Its totient is φ = 687598080.

The previous prime is 2064443611. The next prime is 2064443621. The reversal of 2064443616 is 6163444602.

2064443616 is a `hidden beast` number, since 2 + 0 + 644 + 4 + 3 + 6 + 1 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (2064443611) and next prime (2064443621).

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064443611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 529996 + ... + 533876.

It is an arithmetic number, because the mean of its divisors is an integer number (81603522).

Almost surely, 2^2064443616 is an apocalyptic number.

It is an amenable number.

2064443616 is an abundant number, since it is smaller than the sum of its proper divisors (3811009968).

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

2064443616 is a wasteful number, since it uses less digits than its factorization.

2064443616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5744 (or 5733 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 2064443616 is about 45436.1487804589. The cubic root of 2064443616 is about 1273.3105633262.

The spelling of 2064443616 in words is "two billion, sixty-four million, four hundred forty-three thousand, six hundred sixteen".