4066643044445 has 8 divisors (see below), whose sum is σ = 4946820580536. Its totient is φ = 3208748484096.

The previous prime is 4066643044439. The next prime is 4066643044487. The reversal of 4066643044445 is 5444403466604.

It can be written as a sum of positive squares in 4 ways, for example, as 1874152786009 + 2192490258436 = 1368997^2 + 1480706^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4066643044445 - 2²⁰ = 4066641995869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4066643044393 and 4066643044402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5570743532 + ... + 5570744261.

It is an arithmetic number, because the mean of its divisors is an integer number (618352572567).

Almost surely, 2^{4066643044445} is an apocalyptic number.

It is an amenable number.

4066643044445 is a deficient number, since it is larger than the sum of its proper divisors (880177536091).

4066643044445 is a wasteful number, since it uses less digits than its factorization.

4066643044445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11141487871.

The product of its (nonzero) digits is 13271040, while the sum is 50.

The spelling of 4066643044445 in words is "four trillion, sixty-six billion, six hundred forty-three million, forty-four thousand, four hundred forty-five".