445775545646 has 8 divisors (see below), whose sum is σ = 673473846360. Its totient is φ = 221284263528.

The previous prime is 445775545643. The next prime is 445775545669. The reversal of 445775545646 is 646545577544.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445775545643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801754301 + ... + 801754856.

It is an arithmetic number, because the mean of its divisors is an integer number (84184230795).

Almost surely, 2^445775545646 is an apocalyptic number.

445775545646 is a deficient number, since it is larger than the sum of its proper divisors (227698300714).

445775545646 is a wasteful number, since it uses less digits than its factorization.

445775545646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603509298.

The product of its digits is 282240000, while the sum is 62.

The spelling of 445775545646 in words is "four hundred forty-five billion, seven hundred seventy-five million, five hundred forty-five thousand, six hundred forty-six".