4443665566445 has 16 divisors (see below), whose sum is σ = 6359133830400. Its totient is φ = 2914603004544.

The previous prime is 4443665566433. The next prime is 4443665566471. The reversal of 4443665566445 is 5446655663444.

It is not a de Polignac number, because 4443665566445 - 2¹⁴ = 4443665550061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2760039920 + ... + 2760041529.

It is an arithmetic number, because the mean of its divisors is an integer number (397445864400).

Almost surely, 2^{4443665566445} is an apocalyptic number.

It is an amenable number.

4443665566445 is a deficient number, since it is larger than the sum of its proper divisors (1915468263955).

4443665566445 is a wasteful number, since it uses less digits than its factorization.

4443665566445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520081484.

The product of its digits is 497664000, while the sum is 62.

The spelling of 4443665566445 in words is "four trillion, four hundred forty-three billion, six hundred sixty-five million, five hundred sixty-six thousand, four hundred forty-five".