4066643600 has 30 divisors (see below), whose sum is σ = 9770112210. Its totient is φ = 1626657280.

The previous prime is 4066643597. The next prime is 4066643621. The reversal of 4066643600 is 63466604.

It can be written as a sum of positive squares in 3 ways, for example, as 151388416 + 3915255184 = 12304^2 + 62572^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5082905 + ... + 5083704.

It is an arithmetic number, because the mean of its divisors is an integer number (325670407).

Almost surely, 2^4066643600 is an apocalyptic number.

4066643600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4066643600 is an abundant number, since it is smaller than the sum of its proper divisors (5703468610).

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

4066643600 is a wasteful number, since it uses less digits than its factorization.

4066643600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10166627 (or 10166616 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 4066643600 is about 63770.2407083429. The cubic root of 4066643600 is about 1596.1683836053.

The spelling of 4066643600 in words is "four billion, sixty-six million, six hundred forty-three thousand, six hundred".